factorise : 81 - (x-7)^2
himanshu7068:
(9)^2-(×-7)^2
Answers
Answered by
39
81 - (x-7)²
(9-(x-7))(9+(x-7))
(9-x+7)(9+x-7)
(16-x)(2+x)
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wlcm
Answered by
10
81-(x-7)^2
9^2-(x-7)^2. ={9+(x-7)}{9-(x-7)}
={x+2}{16-x}. =16x-x^2+32-2x
=. -x^2+14x+32
Hope understood!!
It has been said to factorise, not simplify
Only up-to (x+2)(16-x) is required
ok
i had done it in hurry
so mistake happens
Be cool
thanks bro
I know don't worry, not criticizing.
Summary of the poem A grain of Sand by Tabish Khair second Stanza
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