Question

simplify 4.2 (2.7+0.5)² solve the questions please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please​

Answer 1

QUESTION:

Simplify:

$4.2( {2.7 + 0.5})^{2}$

ANSWER:

We use the identity here :

$( {x + y})^{2} \\ {x}^{2} + {y}^{2} + 2xy$

NOW COME TO YOUR QUESTION :

$4.2( {2.7 + 0.5})^{2} \\ 4.2( {2.7}^{2} + {0.5}^{2} + 2 \times 2.7 \times 0.5 \\ 4.2 \times (7.29 + 0.25 + 2.7) \\ 4.2 \times 10.24 \\ 43.008$

FINAL ANSWER :

43.008

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