Question

(7÷2a-5÷2b)whole square-(5÷2a-7÷2b)to whole seqare,find algebric exprasion

Answer 1

(7/2a - 5/2b)² - (5/2a - 7/2b)²,

[(7/2a - 5/2b)+(5/2a - 7/2b)] [(7/2a - 5/2b)-(5/2a - 7/2b)],

[7/2a - 5/2b + 5/2a - 7/2b] [7/2a - 5/2b - 5/2a +7/2b],

[(7/2a + 5/2a) - (5/2b + 7/2b)] [(7/2a - 5/2a) + (7/2b - 5/2b)],

[(7+5)/2a - (5+7)/2b] [(7-5)2a + (7-5)/2b],

[12/2a - 12/2b] [2/2a + 2/2b],

[6a - 6b] [a + b],

[6(a - b)] [a+b],

6(a² - b²)

Answer 2

Answer:

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