Question

Expand using formula
(3x + 5y + 2)(3x + 5y – 2)​

Answer 1

(a+b+c)²= a²+b²+c²+2ab+2bc+2ca

(3x)²+(5y)²+(-2)²+2(3x)(5y)+2(5y)(-2)+2(-2)(3x)

9x²+25y²+4+30xy-20y-12x

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i hope this answer helps u

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