Isolate the variable by dividing each side by factors that don't contain the variable.
x = −1
The choice isB
all the numbers in that choice decrease in numerical order
Factor out -4
-4(x^3+3x^2-2x-6
Factor out x^2
-4(x^2(x+3)-2x-6)
Factor out -2
-4(x^2(x+3)-2(x+3))
Factor out x+3
-4(x+3)(x^2-2)
Answer:
a+51=90
a+51+90=180
39
Step-by-step explanation:
hope this helped :)