Question

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Answer 1

Q1. (i) (x+5)² = x²+10x+25

(ii) (3a+8)² = 9a²+48a+64

(iii) (3a-5)² = 9a²-30a+25

(iv) (5x-3/2)² = 25x²-15x+9/4

(v) (3.1a)²-(0.5)²= 9.61a²-3.1a-0.25

(vi) (x²)²-(y²)² = x⁴-y⁴

(vii) (6x)²-(7)² = 36x²-49

(viii) (x-y) = x²-2xy+y²

(ix) (8a-5b)² = (8a)²-2(8a)(5b)+(5b)² = 64a²-80ab+25b²

(x) (x-5)² = x²-10x+25

(xi) (ab+5c)² = a²b²+10abc+25c²

(xii) (6a²-7b)² = 36a⁴-84a²b+49b⁴

(xiii) (3x+5)² = 9x²+30x+25

(xiv) (4x)²+(7y+5y)x+(7y×5y) = 16x²+12xy+35y²

(xv) (2x²)²+(7+9)2x²+(7×9) = 2x⁴+32x²+63

(xvi) (abc)²-(5-8)abc-5×8 = a²b²c²-3abc-40

Sorry, I don't have that much time to solve all the questions but I have solved 1st one and thank you so much it was a good practice as my exams are next week!!! Class 8th

Please me brainlist as well