Question

9. Factorise: x^2-x(a+7b)+7ab

10. Factorize: x^4−5x^2+4

Answer 1

Answer:

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Answer 2

Answer:

Answer of 9 question :-

Step-by-step explanation:

x² - x a + 7bx +7ab

x(x - a) - 2b(x- a)

(x - a ) (x - 2b)