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Popular >

simplify 20+a^2-21

Solution

simplify

20 + a^{2} - 21

Solution

a^{2} - 1

Solution steps

20 + a^{2} - 21

Group like terms

= a^{2} + 20 - 21

Subtract the numbers:

20 - 21 = - 1

= a^{2} - 1

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Frequently Asked Questions (FAQ)

What is 20+a^2-21 ?
The solution to 20+a^2-21 is a^2-1