10. (x + 5)2 - 4(x + 5) factorise
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Answer:
(2-4)(x+5) is factorisation of problem
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Answer:
( x + 1 ) ( x + 5 )
Step-by-step explanation:
( x + 5 )^2 - 4 ( x + 5 )
= x^2 + 5^2 + 2 ( 5 ) ( x ) - 4 ( x ) - 4 ( 5 )
= x^2 + 25 + 10x - 4x - 20
= x^2 + 10x - 4x + 25 - 20
= x^2 + 6x + 5
= x^2 + 1x + 5x + 5
= x ( x + 1 ) + 5 ( x + 1 )
= ( x + 1 ) ( x + 5 )
Hence factorized.
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