Question

X=-5
(2m-3)x^2+(3m+2)x+15=0

Answer 1

(2m-3)*x²+(3m+2)*x+15=0

x=-5     Inlocuim x-urile cu -5

(-5)² *(2m-3)+(-5)(3m+2)+15=0

25(2m-3)-5(3m+2)+15=0

50m-75-15m-10+15=0

35m-70=0       /+70

35m=70       /:35

m=2