AdoNice AdoNice

24-08-2017
Mathematics

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PLLLLZZZZZZZZZ HELP!!!!!!!!!!!!!!!!!!!!!!!!! What is the value of the expression when a = 3 and b = 2? 3a^{3} + 2b^{3} plzzz help asap

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24-08-2017

a=3 and b=2
subsitute

3a³+2b³
3(3)³+2(2)³
exponents first
3³=27
2³=8
so

3(3)³+2(2)³
3(27)+2(8)
3(27)+2(8)
81+16
97

the value is 97

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