Question

y=(x-3)(x+2) 2)y=-x^2 и у=х-2

Answer 1

y=(x-3)(x+2)
y=x²+2x-3x-6=x²-x-6
D=b²-4ac=1²-4×1×(-6)=1+24=25
x1=1+5/2=3
x2=1-5/2=2