factorize 25 - 4 y square plus 21 y
Answers
Answered by
0
Answer:
5²-2y²
Step-by-step explanation:
25-21y+4y²
5²-42y+2y²
5²-2y²
Answered by
0
Answer:
(25-4y)(y+1)
Concept: This question is from the 'Factorization' topic, we will factor the given equation
Given: 25-4y²+21y
To find: the factor of a given question
Solution: 25-4y²+21y
We can write this question like that
-4y²+21y+25
= -(4y²-21y-25)
= -(4y²-25y+4y-25)
rearrange the terms
=-(4y²+4y-25y-25)
=-4y²-4y+25y+25
=-4y(y+1)+25(y+1)
=(25-4y)(y+1)
Hence, the factors of the given questions are (25-4y)(y+1)
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