Example

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

Question

$${ \times }^{ 2 } +4x-21$$

Answer

$$^4+4*x-21$$

Solution


Remove parentheses.
\[{}^{2}+4x-21\]
Use Multiplication Distributive Property: \({(xy)}^{a}={x}^{a}{y}^{a}\).
\[{}^{2}{}^{2}+4x-21\]
Use Product Rule: \({x}^{a}{x}^{b}={x}^{a+b}\).
\[{}^{4}+4x-21\]
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