Question 107

If x * y = $$(x + 3)^2 (y -1)$$, then the value of 5 * 4 is

Solution

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it is given that x * y = $$(x + 3)^2 (y -1)$$

we need to calculate

5*4 = $$(5+3)^2 \times (4-1)$$

= 64 x 3

= 192

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