(7x + 9y) (3xy) and evaluate when x=2 and y=1
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Answer:
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Step-by-step explanation:
We know that
x = 2 & y = 1
=(7 × 2 + 9 × 1 ) (3 × 2 × 1)
=(14 +9) (6)
=(23) (6)
= 23 × 6
= 138