Consider the given expression. #10; #10; ( 1+2 )^2 #10; #10; =3^2 #10; #10; =3× 3 #10; #10; =9 #10; #10; #160; #10; ...

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Factorisation Using Algebraic Identities

Solve: 1 + ...

Question

Solve: ${(1 + 2)}^{2}$

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Solution

Consider the given expression.

${(1 + 2)}^{2}$

$= 3^{2}$

$= 3 \times 3$

$= 9$

Hence, the value is $9$ .

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