Answer:
1.)a=1 b=1 c=-12
2.)a=1 b=6 c=8
3.)a=1 b=-8 c=15
4.)a=7 b=4 c=1
5.)a=1 b=-1 c=-12
I do my best to answer this please correct me if im wrong
Step-by-step explanation:
1.)x²+x-12=0
a=1 b=1 c=-12
2.)x²+6x+8=0
a=1 b=6 c=8
3.)x²-8x+15=0
a=1 b=-8 c=15
4.)(3x+2)(4x-1)=0
7x²-2x+6x+1=0
7x²+4x+1=0
a=7 b=4 c=1
5.)2x²-(x+2)(x-3)=11
2x²-x²-3x+2x-1-11
x²-x-12
a=1 b=-1 c=-12