Question

Class : 8th -ICSE
Subject : Maths

Please write and send the answer of marked questions please ​

Answer 1

B) :-

$(3+s)^2\\=3^2+2(3)(s)+s^2\\=9+6s+s^2$

C) :-

$(4+3e)^{2} \\=(4)^2 +2(4)(3e)+(3e)^2\\=8+24e+9e^2$

D) :-

$4(xy+5)^{2} \\=(4xy)^2 +2(4xy)(5)+5^2\\=16xy^2 +40xy +25$

F) :-

$(\frac{3p}{4x}+7s )^2\\=(\frac{3p}{4})^2 +2(\frac{3p}{4}) (7s)+(7s)^2\\=\frac{9p^2}{16}+\frac{21ps}{2} +7s^2$

Hope it helps,

Cheers