Math, asked by shivam12052007, 4 months ago

. Use suitable identities find -
A. (x-3) (x + 5)
B. (2a -3b )








by identity​

Answers

Answered by golibaazyt
0

Answer:

A.(x-3)(x+5)

x²+5x-3x-15

x²+2x-15

Answered by sayshabatra12
0

(2/a+5/b)(2a+5/b)

= (2/a+5/13)

2

= (2/a)

2

+2(2/a)(5/b)+(5/b)

2

[Using, (a+b)

2

=a

2

+2ab+b

2

]

= 4/a

2

+20a/b+25/b

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