Math, asked by likiviachumi2, 8 months ago

Expand each other following,using suitable identities
(1) (3a-7b-c)^2
(2) (-2x+5y-3z)^2

5.Factorise
(1) 4x^2+9y^2+16z^2+12xy-24yz-16xz

Answers

Answered by asthadwivedi5

4

Use same identity in all the questions......

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