x=5 then find the 7x cube +4x square+8x
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Answered by
1
Answer:
x=5 (given).
7x³+4x²+8x
=7×(5)³+4×(5)²+8×5
=7×125+4×25+40
=875+100+40
=1015 is Ans...
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Answered by
1
Answer:
x=5
=7×5^3+4×5^2+8x
=7×125+4×25+40
=875+100+40
=1015
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