factorise 4c square+3c-10
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Answered by
16
4c^2+3c-10=0
4c^2+8c-5c-10=0
4c (c+2)-5 (c+2)=0
(4c-5)(c+2)=0
4c^2+8c-5c-10=0
4c (c+2)-5 (c+2)=0
(4c-5)(c+2)=0
Gurbir:
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Answered by
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FActorization: 4 c² + 3 c - 10.
Take coefficients of c² and constant term:
4 * (-10) = - 40.
Find its factors such that their difference is 3 (coefficient of c )
-40 = -2 * 20, -4 * 10 , - 8 * 5.... This is right.
So 4 c² - 8 c + 5 c - 10
4 c (c - 2) + 5 ( c - 2)
(4 c + 5) (c - 2)
answer.
Take coefficients of c² and constant term:
4 * (-10) = - 40.
Find its factors such that their difference is 3 (coefficient of c )
-40 = -2 * 20, -4 * 10 , - 8 * 5.... This is right.
So 4 c² - 8 c + 5 c - 10
4 c (c - 2) + 5 ( c - 2)
(4 c + 5) (c - 2)
answer.
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