Question

Expand using
suitable algebraic
(2x + 4 y +7z)²
identities




give pic of solution ​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

2x²+4y²+49z²+16xy+56yz+28zc

Step-by-step explanation:

using = (a+b+c)²= a²+b²+c²+2ab+2bc+2ca

= (2x+4y+7z)²

= 2x²+4y²+(7z²)²+(2 × 2x × 4y) + (2 × 4y × 7z) + ( 2 × 7z × 2x)

= 2x²+4y²+49z²+16xy+56yz+28zx

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