Question

Which of the following is -5x+4-3x²-7x+4 simplified and written in standard form?

A. 3x²-12x+8
B. 2x-3x²
C. -3x²+7x-5x
D. -3x²+2x

Answer 1

The simplified expression in standard form is -3x² -12x + 8.

Step-by-step explanation:

To simplify the expression -5x+4-3x²-7x+4 and write it in standard form, we need to combine like terms. Like terms have the same variable and exponent.

Combining like terms -5x-7x, we get -12x. Combining like terms 4+4, we get 8. So, the simplified expression in standard form is -3x² -12x + 8.