Question

Which one of the following expression is NOT equal to 12?


8p ÷ 2; p = 3

5p −18 + p; p = 5

p2 + p + 6; p = 2

2p; p = 6
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Answer 1

Answer:

I think all expressions are equal to 12

Answer 2

Answer:

none of these

Step-by-step explanation:

i.8p ÷ 2; p = 3

=8(3) ÷ 2

=24 ÷ 2

=12

ii.5p −18 + p; p = 5

=5(5)-18+5

=25-18+5

=7+5

=12

iii.p2 + p + 6; p = 2

$= ( {2})^{2} + 2 + 6 \\ = 4 + 2 + 6 \\ = 6 + 6 \\ = 12$

iv.2p; p = 6

=2(6)

=12