Question

b)x2-7x12=0? C)x2+5x+4=0 D)2x2+3x+1=0

Answer 1

b) x=42
c) x=4/7
d) x=5/3

Answer 2

b)2x(-7.12)=0 c)2x+5x+4=0
2x=84 7x=4
x=84/2 x=4/7
x=42

d)2×2+3x+1=0
4+3x+1=0
3x=5
x=5/3