Question

(x⁴ + 3x³ – 2x² + 5) + (2x⁴ – 5x³ + 4x – 15).

Answer 1

Answer:

$\left(x^4+3x^3-2x^2+5\right)+\left(2x^4-5x^3+4x-15\right)$

$=$ $x^4+3x^3-2x^2+5+2x^4-5x^3+4x-15$

$=x^4+2x^4+3x^3-5x^3-2x^2+4x+5-15$

$=x^4+2x^4-2x^3-2x^2+4x+5-15$

$=3x^4-2x^3-2x^2+4x+5-15$

$=3x^4-2x^3-2x^2+4x-10$

$OAmalOHopeO$