Question

factories: (a) 2xy-(x2+y2-z2) (b) x4-25y4
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Answer 1

Answer:

(b) (x^2-5y^2)(x^2+5y^2)

Step-by-step explanation:

(b)x^4-25y^4

=(x^2)^2- (5y^2)^2

=(x^2-5y^2)(x^2+5y^2)