Question

multiply : 15xy × 3x²y
​

Answer 1

$15xy \times 3 {x}^{2}y \: = 45 {x}^{3} {y}^{2}$

Answer 2

SOLUTION

TO EVALUATE

$\sf{15xy \times 3 {x}^{2}y }$

EVALUATION

Here we have to find the value of

$\sf{15xy \times 3 {x}^{2}y }$

We are aware of the formula on indices that

$\sf{ {a}^{m} \times {a}^{n} = {a}^{m + n} }$

Now

$\sf{15xy \times 3 {x}^{2}y }$

$\sf{ = 15 {x}^{1} {y}^{1} \times 3 {x}^{2} {y}^{1} }$

$\sf{ = 15 \times 3 \times {x}^{1 + 2} {y}^{1 + 1} }$

$\sf{ = 45 {x}^{3} {y}^{2} }$

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