Question

Expand (-5a+10b)
And expand (3a-2b) square

Answer 1

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1) (-5a+10b)²

2) (3a-2b)²

$\huge{\mathfrak{\underline{\underline{\orange{ANSWER-}}}}}$

1) (-5a+10b)²

➡️(-5a)²+2×(-5a)×10b+(10b)²

➡25a²+(-100ab)+100b²

➡25a²-100ab+100b²

2) (3a-2b)²

➡(3a)²-2×3a×2b+(2b)²

➡9a²-12ab+4b²

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