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
g
The answer is the bottom left
E and F= 54 Degrees D is 90 degrees
x=11. 38 degrees; 52 degrees
90+6x-14+3x+5=180
81+9x=180
9x=99
x=11
38 degrees, 52 degrees
