Answer:
<u>x=-17 </u>
Step-by-step explanation:
addition property of equality is adding the same number to both sides of an equation does not change the equation.
subtraction property of equality is subtracting the same number from both sides of an equation does not change the equation.
subtract by 5 both sides of an equation.
x+5-5=-12-5
simplify.
-12-5=-17
12+5=17
x=-17
Hope this helps!
Thanks!
Answer:
b=2
Step-by-step explanation:
if x-4 is a factor,then, x-4=0 hence, x=4
sub x=4 in the equation and equate it to zero -from factor theorem
4^2 +4b -24=0
16+4b -24=0
4b=24-16
4b=8
b=8/4=2
27x^2 - 42x + 12
If x = 2:
27(2)^2 - 42(2) + 12
= 27(4) - 84 + 12
= 108 - 72
= 36
it is a arithmetic sequence
Sorry this took a while but it should be the last option for it to be correct.