[" Find the following squa "],[" (i) "(b-7)^(2)],[" (iv) "((2)/(3)m+(3)/(2)n)^(2)]

If (15a^(2)+4b^(2))/(15a^(2)-4b^(2))=(47)/(7) then find the values of the following (i) (a)/(b) (ii) (7a-3b)/(7a+3b) (iii) (b^(2)-2a^(2))/(b^(2)+2a^(2))

Find the cube of each of the following (i) (-7) (ii) 1 2/3 (iii) 2.5 (iv) 0.05

Evaluate : (iv) (-2)/(7)-(3)/(-14)

Find the value of n in each of the following: (i) 2^(n-7)xx5^(n-4)=1250 (ii) 5^(n-2)xx3^(2n-3)=135

Find the following products: 2a^(3)(3a+5b) (ii) -11a(3a+2b)-5a(7a-2b)( iv) -11y^(2)(3y+7)

Add the following expressions: 3n^(2)+5mn-6m^(2), 2m^(2)-3mn -4n^(2), 2mn-3m^(2)-7n^(2)

Evaluate: (i) 3 ^(-4) " "(ii) (-4) ^(3) " "(iii) ((3)/(4))^(-2)" "(iv) ((-2)/(3)) ^(-5) " "(v) ((5)/(7))^(0)

Find the values of :- (i) 2^(4) (ii) 4^(3) (iii) 3^(2) (iv) 5^(3) (v) 9^(4) (vi) 7^(3)