Perform the indicated operations.
-$27 \sqrt { 7 } - 6 \sqrt { 7 }$
A) 21
B) $33 \sqrt { 7 }$
C) 147
D) $21 \sqrt { 7 }$

Name: Perform the indicated operations. -$27 \sqrt { 7 } - 6 \sqrt { 7 }$ A) 21 B) $33 \sqrt { 7 }$ C) 147 D) $21 \sqrt { 7 }$
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Quizplus · Accepted Answer

The operation involves like terms, so you combine them by adding or subtracting their coefficients. $27 \sqrt{7} - 6 \sqrt{7} = (27-6) \sqrt{7} = 21 \sqrt{7}$.

Perform the Indicated Operations 277−6727 \sqrt { 7 } - 6 \sqrt { 7 }277​−67​

Perform the Indicated Operations $27 \sqrt { 7 } - 6 \sqrt { 7 }$