Question
Find the following products:
$ (5x + 7) × (3x + 4)$
$ (5x + 7) × (3x + 4)$
✓
Answer
$(5x + 7) × (3x + 4) $
$= 5x(3x + 4) + 7(3x + 4)$
$= 15x^2 + 20x + 21x + 28$
$= 15x^2 + 41x + 28$
$= 5x(3x + 4) + 7(3x + 4)$
$= 15x^2 + 20x + 21x + 28$
$= 15x^2 + 41x + 28$
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