Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$2 { \times }^{ 2 } -5 { y }^{ 2 } =$$

Answer

$$2*^3-5*y^2$$

Solution


Remove parentheses.
\[2{}^{2}-5{y}^{2}\]
Use Product Rule: \({x}^{a}{x}^{b}={x}^{a+b}\).
\[2{}^{3}-5{y}^{2}\]
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