(x+6)(x+2)=60
expand
x^2+6x+2x+12=60
x^2+8x+12=60
minus 60 both sides
x^2+8x-48=0
factor
what multiplies to -48 and adds to 8
-4 and 12
(x-4)(x+12)=0
set each to zero
x-4=0
x=4
x+12=0
x=-12
x=4 or -12
solutions are x=-12 and 4
Answer: i’ll help
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
if the shapes are similar then the measures are proportional:
9/6 = 15/v cross multiply expressions
9v = 90 divide both sides by 9
v = 10
