Simplify the following experssion -2[a2+ab]+3+ab and …
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Neeraj Sharma 7 years, 1 month ago
{tex} - 2\left[ {{a^2} + ab} \right] + 3 + ab{/tex}
{tex}on\,putting\,a = 2\,and\,b = 3{/tex}
{tex} = - 2\left[ {{{\left( 2 \right)}^2} + 2 \times 3} \right] + 3 + 2 \times 3{/tex}
{tex} = - 2\left[ {4 + 6} \right] + 3 + 6{/tex}
{tex} = - 2 \times 10 + 9{/tex}
{tex} = - 20 + 9{/tex}
{tex} = - 11{/tex}
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