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
Common factor of 16 and 24 is 8
Answer:
Infitite solutions (C)
Step-by-step explanation:
They are the same line.
5+2x=11 (this is the equation)
<span>-5 -5 </span>
<span>2x=6 (this is the answer)</span>
<span>x=3</span>
Answer:
f= 3
Step-by-step explanation:
-12 = 4f-24
+24. +24
----------------
12 = 4f
/4. /4
-----------
f= 3
