Math Problem If the square of 2x is 5x 3 0, find the value of the algebraic formula 15x squared 18x

Elementary 1 math problem: If the square of 2x - 5x + 3 = 0, the square of 2x - 5x = -3 algebraic equation (15x squared - 18x + 9) - (3x squared + 19x - 36) - 8x value.

18x squared - 45x+45

9 (2x squared - 5x) + 45

Follow your question.

It can be obtained from the title.

2x squared = 5x

2x squared = -3

5x = -315x squared - 18x+9) - (3x+19x-36)-8x15x squared - 18x+9+3x-19x+36-8x15x squared - 42x+48

Substitute 2x squared = 5x 2x squared = -3 5x = -3.

Is it 2x squared - 5x+3=0

2x -5x+3=0 Find (15x -18x+9)-(3x+19x-36)-8x

2x-3)(x-1)=0 x=1

15x²-18x+9+3x-19x+36-8x15x²-42x+45

When x=1.

Is this your original question?

2x -5x+3=0 Find (15x -18x+9)-(3x+19x-36)-8x

I'm going to do it according to what I understand (2x-3) (x-1)=0 x=1 x=15x -18x+9+3x-19x+36-8x=15x -42x+45=

When x=1, 15-42+45=18

When x=,

There is a condition in the question that cannot be used, so it is a wrong question.

Did you make a mistake in the title?

Because x +3x+5 = 7

then x +3x = 2

3x²+9x+2

3（x²+3x）+2

The value of 8,6,x squared + 3x+5 is 7

x squared + 3x = 7 - 5 = 2

3x squared + 9x = 2 * 3 = 6

3x of the square of the jujube + 9x-2 = 6-2 = 4

Because x +3x+5 = 7

Then x stool head does +3x=2

3x²+9x+2

3（x²+3x）+2

The value of 8,2,x squared + 3x+5 is 7

x squared + 3x = 7 - 5 = 2

3x Pingqin Cha Fang +9x = 2 * 3 = 6

3x squared + 9x-2 = 6-2 = 4

I'm doing this too!! ,1,

The square of x + 3x + 5 has a value of 7

x squared + 3x = 7 - 5 = 2

3x squared + 9x = 2 * 3 = 6

3x squared + 9x-2 = 6-2 = 4

I'm doing this too!!

The square of x + 3x + 5 has a value of 7

x squared + 3x = 7 - 5 = 2

3x squared + 9x = 2 * 3 = 6

3x squared + 9x-2 = 6-2 = 4

Because x +3x+5 = 7

then x +3x = 2

3x²+9x+2

3（x²+3x）+2

Your description is too abstract...

2x^2+x-5=0

6x^3+7x^2-13x+11

6x^3+7x^2-13x+11

6x^3+3x^2-15x+4x^2+2x-10+21＝3x（2x*x+x-5）+2（2x*x+x-5）+21＝3x*0+2*0+21

21 Glad to answer for you, I wish you progress in your studies!

3 is used for cube and 2 is used for square, because 2x 2+x-5=0 so x=2 or x=

The value of the algebraic formula x squared + 3x+5 is 7

Then the square of x + 3x = 2

The value of the square of the algebraic formula 3xx + 9x-2.

3 (x squared + 3x) - 2

x^2+3x+5=7

Move 5 to the right of the equal sign to get x 2 + 3x = 2, and the algebraic formula required should be 3x 2 + 9x-2, right? You didn't write it clearly, and I guessed it myself, if it was, it can be factored into:

3（x^2+3x）-2

Because x 2+3x=2 is brought into the above equation, there is: 3x2-2=4

+3x=2, you can bring it into the latter formula.

Solution: x -2x-8 = 0

x-4)(x+2)=0

The solution yields x=4, or x=-2

When x = 4, 2x -3x -18x + 5

13 When x = -2, 2x -3x -18x+5 = 2 (-2) -3 (-2) -18 (-2)+5=-16-12+36+5

13 So the algebraic formula 2x cube - 3x square - 18x+5 has a value of 13 I wish you a happy and hope it helps you, on the top floor.