Question
Subtract:
$7 a^2 b$ from $3 a^2 b$
$7 a^2 b$ from $3 a^2 b$
✓
Answer
Required expression:
$=3 a^2 b-7 a^2 b$
$=(3-7) a^2 b$
$=-4 a^2 b$
$=3 a^2 b-7 a^2 b$
$=(3-7) a^2 b$
$=-4 a^2 b$
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