80 ...........................
Answer:
23.52 cm
Step-by-step explanation:
Answer:
4x^3 − 16x^2 − 12x − 40
Step-by-step explanation:
= 4(x)(x^2 +x +2) +4(-5)(x^2 +x +2) . . . use the distributive property
= 4x^3 +4x^2 +8x -20x^2 -20x -40 . . . . and again
= 4x^3 -16x^2 -12x -40
X-9=12
x-9+9=12+9
You need to add 9 to each side of the equation.
x=21