Math, asked by sudhakarsingh13, 7 months ago

factorize
xsquare-21x+90​

Answers

Answered by deepakshi1997
1

Answer:

x^2-21x+90

here we choose two no which sums gives you 21 and their product gives you 90

i. e 15 & 6

then,

x^2 -15x-6x + 90

taking x common form first two term and taking (-6) common form last two term

x(x-15) -6 (x-15)

taking (x-15) common

(x-15) (x-6)

these are the required factor

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