Ответ:
1)x²-9x+14=0 2)x²+x-12=0 3)x²+8x+12=0
x1=7 x1=-4 x1=-2
x2=2 x2=3 x2=-6
7×2=14 -4×3=-12 -6×(-2)=12
4)x²+5x-24=0
x1=-8
x2=3
-8×3=-24
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Ответ:
1)x²-9x+14=0 2)x²+x-12=0 3)x²+8x+12=0
x1=7 x1=-4 x1=-2
x2=2 x2=3 x2=-6
7×2=14 -4×3=-12 -6×(-2)=12
4)x²+5x-24=0
x1=-8
x2=3
-8×3=-24