Question

помогите пж !! срочно 9.7

Answer 1

1) 5x^2-3-2x-5 = 5x^2
3-2x-5 = 0
3-5=2x
2x= -2
x = -1
2) x^2 - x - 1 - x^2 + 7x - 32 = 3
-x - 1 + 7x = 35
6x = 36
x = 6
3) y^3 + 3y - 8 - 5y + y^3 - 7 = 2y^3 - 2y - 15
2y^3 - 2y - 15 = 2y^3 - 2y - 15.
ответ: много корней