Simplify the expression below. (-3x2 + 2x - 4) + (4x2 + 5x + 9)

Question

Mathematics

Raymond Bass

22 December, 08:07

Simplify the expression below. (-3x2 + 2x - 4) + (4x2 + 5x + 9)

+2

Answers (2)

Know the Answer?

Gasby · Answer 1

Answer: = x2+7x+5

Step-by-step explanation:

-3x2+2x-4+4x2+5x+9

=-3x2+2x+-4+4x2+5x+9

Combine Like Terms:

=-3x2+2x+-4+4x2+5x+9

= (-3x2+4x2) + (2x+5x) + (-4+9)

=x2+7x+5

Answer:

=x2+7x+5

Palmer · Answer 2

x^2+7x+5

Step-by-step explanation:

Remove parentheses: - 3x^2+2x-4+4x^2+5x+9

Group like terms: - 3x^2+4x^2+2x+5x-4+9

Add similar elements: x^2+2x+5x-4+9

Add/subtract the numbers: x^2+7x+5