Question

(5х2+6х-3)-(2х2-3х-4)

Answer 1

(5*2+6*(-3))-(2*2-3*(-4)) = (10-18) - (4+12) = 8

Answer 2

(5х2+6х-3)-(2х2-3х-4)
(10+6х-3)-(4-3х-4)
(7+6х)-(-3х)
7+6х+3х
7+9х

Answer 3

To simplify the expression (5x^2 + 6x - 3) - (2x^2 - 3x - 4), we can perform the subtraction of the corresponding terms:

First, let's simplify the terms inside the parentheses:

5x^2 - 2x^2 = 3x^2 6x - (-3x) = 6x + 3x = 9x -3 - (-4) = -3 + 4 = 1

Now, we can rewrite the expression without the parentheses:

(5x^2 + 6x - 3) - (2x^2 - 3x - 4) = 3x^2 + 9x + 1

Therefore, the simplified form of the expression is 3x^2 + 9x + 1.