You should just have to change y to f(x)
The answer is 10
Step-by-step explanation:
Answer:
Factoring
Step-by-step explanation:
x^2 + 7x = x(x + 7) = 0
So
x = 0 or x = -7
Answer:
-20
Step-by-step explanation:
20 Below -> -20
Think of it as a vertical number line, where sea level is 0. Anything above is positive, and anything below is negative.
First line because 4(2a+1)=8a+4 and 9a+4-(8a+4)= a
Second line because a times 2 =2a and 2a+1-2a=1
<span>Although the second equality is more or less obvious since 2a+1 leaves a remainder of 1 when divided by a.</span>
