Question

Type the correct answer in each box.Consider these quadratic expressions:A. -3x^2+ 11x-3B. 11x^2- x + 10C. 4x^2 + 27x - 28D.-3x^2 + 11x + 31

Answer 1

(5x2 + 2x + 1) + (6x2 − 3x + 9) is equivalent to expression

B

(-3x2 + 6x − 12) + (5x + 9) is equivalent to expression

A

(8x + 16) − (3x2 − 3x − 15) is equivalent to expression

D

(5x2 + 23x − 7) − (x2 − 4x + 21) is equivalent to expression

C

Got it right on Edmentum

Answer 2

Given expression,

`(5x^2+2x+1)+(6x^2-3x+9)=(11x^2-x+10)`

Option B is correct.

`(-3x^2+6x-12)+(5x+9)=(-3x^2+11x-3)`

Option A is correct.

`(8x+16)-(3x^2-3x-15)=(-3x^2+11x+31)`

Option D is correct.

`(5x^2+23x-7)-(x^2-4x+21)=(4x^2+27x-28)`

Option C is correct.