18. What is the greatest common factor of the terms 6q^5 – 21q^4 - 15q^2 A. 3q^2
B. 6q^2
C. 3q
D. 2q^2​

A. 3q^2

Step-by-step explanation:

Find the prime factors of each term in order to find the greatest common factor (GCF).

the answer is ! ?

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.