Question

решите уравнение
-2x^2+x+7=-x^2+5x+(-2-x^2)

Answer 1

-2x^2+x+7=-x^2+5x+(-2-x^2) = -2x^2+x+7+х^2-5x+2+2x^ = 0
-4x+9=0
-4x=-9
x= -9/-4
x=2,25

Answer 2

X=2.25 XD XD XD XD XD