b
Answers
Answered by
1
x²+14x+48=0
x²+14x=-48
x²+7*2x+7²=-48+7²
(x+7)²=-48+49
(x+7)²=1
x+7=√1
x+7=1 OR x+7=-1
x=1-7 x=-1-7
x=6 x=-8
(∝,β)=(6,-8)
Similar questions