factorize 15x^2+7x+2
Answers
Answered by
1
Answer:
Step-by-step explanation:
Explanation:
Given:
15 x 2+ 7 x − 2
Use an AC method: Find a pair of factors of
A
C
=
15
⋅
2
=
30
which differ by
B
=
7
.
The pair
10
,
3
works.
Use this pair to split the middle term then factor by grouping as follows:
15 x 2 + 7 x − 2
= 15 x 2 + 10 x − 3x − 2
=
( 15 x 2 + 10 x ) −
( 3 x + 2 ) = 5 x
( 3 x + 2 ) − 1
( 3 x − 2 )
=
( 5 x − 1 )
( 3 x +2 )
Answered by
0
Answer:
15x²+7+x-2
Step-by-step explanation:
factory the some
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