Evaluate
-30
Factor
-30
Quiz
Arithmetic
5 problems similar to:
( \sqrt{ 18 } + \sqrt{ 48 } ) \times ( \sqrt{ 18 } - \sqrt{ 48 } )
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\left(\sqrt{18}\right)^{2}-\left(\sqrt{48}\right)^{2}
Multiplication can be transformed into difference of squares using the rule: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}.
18-\left(\sqrt{48}\right)^{2}
The square of \sqrt{18} is 18.
18-48
The square of \sqrt{48} is 48.
-30
Subtract 48 from 18 to get -30.
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