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Popular >

simplify (2a)^2-1

Solution

simplify

(2 a)^{2} - 1

Solution

4 a^{2} - 1

Solution steps

(2 a)^{2} - 1

Apply exponent rule:

(a \cdot b)^{n} = a^{n} b^{n}

(2 a)^{2} = 2^{2} a^{2}

= 2^{2} a^{2} - 1

2^{2} = 4

= 4 a^{2} - 1

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Frequently Asked Questions (FAQ)

What is (2a)^2-1 ?
The solution to (2a)^2-1 is 4a^2-1