Question

(1/4a2 + 5/9b2) (a+b+ab); a=2 , b= 3​

Answer 1

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$( \frac{1}{4} {a}^{2} + \frac{5}{9} {b}^{2} )(a + b + ab)$

$(\frac{1}{4} {(2)}^{2} + \frac{5}{9} ( {3)}^{2} )(2 + 3 + (2)(3))$

$\frac{1}{4} \times 4 + \frac{5}{9} \times 9)(5 + 6)$

$(1 + 5)(5 + 6)$

$(6)(11)$

$66$