Which expression is a factor of 21x2 + 13x – 20?
1 answer:
Answer: 7x-5
Step-by-step explanation:
Assuming the expression is 21^2 + 13x -20.
(7x-5)(3x+4)
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I hope this helps. Lol I solved it easily. Good luck
<span>7x+9=2(4x+2)
7x+9=8x+4
7x-8x=4-9
-x=-5
x=-5/-x
x=5
</span>
