Remove or add parentheses as indicated.
-Place parentheses to make the equation $a + b \cdot a + b = a ^ { 2 } + 2 a b + b ^ { 2 }$ true.
A) $a + b \cdot ( a + b ) = a ^ { 2 } + 2 a b + b ^ { 2 }$
B) $( a + b ) \cdot ( a + b ) = a ^ { 2 } + 2 a b + b ^ { 2 }$
C) None needed.
D) $( a + b ) \cdot a + b = a ^ { 2 } + 2 a b + b ^ { 2 }$

Question

Quizplus · Accepted Answer

The correct equation is B) $( a + b ) \cdot ( a + b ) = a ^ { 2 } + 2 a b + b ^ { 2 }$, which is the expansion of the binomial $(a + b)^2$, resulting in $a^2 + 2ab + b^2$.

Remove or Add Parentheses as Indicated a+b⋅a+b=a2+2ab+b2a + b \cdot a + b = a ^ { 2 } + 2 a b + b ^ { 2 }a+b⋅a+b=a2+2ab+b2

Remove or Add Parentheses as Indicated $a + b \cdot a + b = a ^ { 2 } + 2 a b + b ^ { 2 }$