Question

find the sum of 7x^2-2x+5; -2x^2-11x+3; -2x^2-2x-4

Answer 1

Answer:

7x^2-2x+5 + (-2x^2-11x+3) + (-2x^2-2x-4)

= 3x^2 -15x + 4.

⚡Hope it will be helpful.⚡

Answer 2

Answer:

3x^2-15x+4

Step-by-step explanation:

(7x^2-2x+5)+(-2x^2-11x+3)+(-2x^2-2x-4)

=7x^2-2x+5-2x^2-11x+3-2x^2-2x-4

=7x^3-2x^2-2x^2-2x-11x-2x+5+3-4

=7x^2-4x^2-13x-2x+8-4

=3x^2-15x+4