(i) If a = 4 then find the value of a2 + 4a -3.
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1
Answer:
21 is the answer
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15
= a² + 4a - 3 [when a = 4]
= (4)² + 4×4 - 3
= 16 + 16 - 3
= 32 - 3
= 29
Hope it helps......
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