Question

Plz do Q4 and Q5.
If u can do one then also very much pleasure....Plzzz

Answer 1

✔️HEY MATE! HERE'S YOUR ANSWER!✔️

(4) square of ${({2y}^{2} + \frac{1}{{x}^{2}})}$

${({2y}^{2} + \frac{1}{{x}^{2}})}^{2}$

$= ( {2 {y}^{2}) }^{2} + { ( \frac{1}{ {x}^{2}} )}^{2} + 2(2 {y}^{2})( \frac{1}{ {x}^{2} } )$

$= 4 {y}^{2} + \frac{1}{ {x}^{4} } + \frac{4{y}^{2}}{ {x}^{2} }$
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(5) since, area of a rectangle = Length × breadth.

$= 3 {x}^{2} y + {y}^{2} \times \frac{5}{8} {x}^{2}$

$= \frac{5 {x}^{2}(3 {x}^{2}y + {y}^{2} ) }{8}$

$= \frac{15 {x}^{4} y + 5 {x}^{2} {y}^{2} }{8}$

hope it is helpful ✌️!