Answer:
B. 7x - 5
Explanation
Given the expression 21x^2 + 13x – 20, to get which of the given expression is a factor we will have to factorize the equation first as shown;
21x^2 + 13x – 20
= 21x^2 + 28x - 15x - 20
= 7x(3x+4) -5(3x+4)
= (7x-5)(3x+4)
Hence one of the factors is 7x - 5
Answer:
12 Squared Units
Step-by-step explanation:
Top length: 4 Units
Side length: 3 Units
Answer:
78
Step-by-step explanation:
a
Answer:
k=-9
Step-by-step explanation:
The given functions are

and

We want to find the value of k, for which

This means we need to extract g(x) from f(x) to get:

Or


Therefore k=-9