a b is the difference between a plus b and multiplying a minus b, calculate 215 27 23 How to calcula

a*b denotes the difference between the sum of a plus b and the product of a minus b. How to calculate 215*(27*23): from the question:

27*23=(2723)x(27-23)=200∴215*(27*23)=215*200=(215200)(215-200)=415x15=6225。

The meaning of the operation represented by the five-pointed star is as follows: a pentagram b is equal to the sum of a times b minus a plus b, and the calculation is: 5 pentagram 7 answers.

If ab>0, find the absolute value of a plus b b minus the absolute value of a-b The value of a-b is not very clear, and it is difficult. This kind of problem is usually discussed separately, and a and b are represented on the number line, and then calculated one by one. Antibody.

a*b represents the difference between a+b and a minus b, and the calculation of 215*(27*23) is calculated as follows: 27*23=(27+23)x(27 i 23)=200+215*(27*23)=215*200=(215+200)(215 i 200)=(215+200)=415x15=6225.

a*b is the sum of a+b multiplied by a minus b. How to calculate 215*(27*23): from the meaning of the question:

27*23=（27+23）x（27-23）=200 215*（27*23）=215*200=（215+200）（215-200）=415x15=6225。

a, b is the sum of a plus b multiplied by a minus b. How to calculate 215*(27,23): According to the meaning of the question: 27,23=(27,24)x(27-23)=200 215*(27,23)=.

a*b represents the difference between a+b and the sum of a+b, and how to calculate 215*(27*23): according to the meaning of the question: 27*23=(27+23)x(27-23)=200 x 215*(27*23)=215*200=(215+200)(215-200)=415 x 15=6225.

a*b is the sum of a plus b multiplied by a minus b, calculate 215 * (27 * 23) How to calculate: from the inscription: 27 * 23 = (27 + 23) x (27-23) = 200 215 * (27 * 23) = 215 * 200 = (215 + 200) (215-200) = 415 x 15 = 6225.

Summary. Uh-huh.

a*b is the difference between a plus b and multiplied by a minus b, and 215*(27*23) a*b is the difference between a plus b and multiplied by a minus b, and 215*(27*23) is calculated. a*b represents the difference between a plus b and multiplying a minus b, and calculates 215*(27*23) kiss is in the column.

According to the requirements of the question, you first need to calculate the value of 4@2. Substituting 4 and 2 into the formula gesture answer accompaniment to calculate the traces is stupid

Take the book, substitute 6 into the formula, multiply 240 by 6, divide 240 by 6, and then subtract to get the answer. tools

Reply to the landlord: Parentheses minus b equals minus b

a▽b＝2ab/[（a+b）×（a-b）]2ab/（a²-b²）

6 Slow Belt 4+9 8

2 6 4 (6 Disturbing Lu-4 ) +2 9 8 (9 -8 ) Honghao (48 7 + 144 20) (20 17) 804/85

First, we assign the law parentheses according to multiplication:

2ab + 3a) -2(2a - b) +2ab-2ab + 3a - 4a + 2b + 2abNext, we merge the like:

2ab + 2ab) +3a - 4a) +2b Since -2ab and 2ab cancel each other out, 3a and 4a are subtracted to get -a:

0 + a) +2b

Finally, simplify the expression and remove the 0:

a + 2b

Therefore, guessing that the result of the given expression is -a + 2b.

a+b=-3

243a-27b

243a+27b）

Extract the common factor of 27

27（9a+b）

This topic should be one less regretful piece.