Answer:
Explanation:
substitute 3 for the s
4 (3)² + 7 =
4 (9) + 7 =
36 + 7 = 43
Answer:151
So, s=3 and 4s squared +7
4(3)=12
12 squared =144
144+7= 151
you would replace the s with three in place of 4s
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