21x^2
you CAN'T factor 21x^2
Answer:
Box Number 3.
Step-by-step explanation:
4 is a coefficient in 4x because 4x is really 4*x which has 4 multiplying x. This is the same as 4 working with x. Also none of the other answers are true.
-x+2x=-11+7
x=-11+7
x=-4
C.-4
It should be +19 if I’ve not mistaken
The sine of the angles are 180 degrees
