Math, asked by ayush729989, 10 months ago

Q19. Factorise : 1 - 18x – 63 x2
020. Simplify: (2x - 5y)3 - (2x + 5y) 3

Answers

Answered by kashif746

1

20) you can make this question by using formula of

a3- b3

=(a-b)(a2+b2 +ab)

kashif746: i) question check it is wrong or right

kashif746: then tell me

kashif746: i will try

ayush729989: sory it's 1-18x-63x^2

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