1.

If a + b = 19 and ab = 88 find the value of a3 + b3.1. 14832. 13563. 18464. 1843

Answer» Correct Answer - Option 4 : 1843

Given:

a + b = 19

ab = 88

Formula Used:

a3 + b3  = (a + b)3 – 3ab(a + b)

Calculation:

substituting the given values in the formula 

a3 + b3  = (19)3 – 3 × 88(19) 

a3 + b= 6859 - 5016 = 1843

∴ The value of a3 + bis 1843



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