Find the value of the following expressi...

Find the value of the following expressions for `a=3, b=2.`
(i) `a+b` (ii) `7a-4b` (iii) `a^2+2ab+b^2` (iv) `a^3-b^2`

Verified by Experts

Solution:
a=`4`,b=`3`
(i) `3a+2b`
=> `3(4)+2(3)`
...

Similar Questions

Explore conceptually related problems

Find the value of the following expressions at a=1 b = -2 : (i) a^2+b^2+3ab (ii) a^3+a^2b+ab^2+b^3

Find the values of each of the following expressions for a=1,b=2 and c=-1a^(2)+b^(2)+2ab( ii) 2a^(2)-b^(2)c+3abc

Find the value of the expression 3ab - 4a + 5 ,if a=4 and b = 2 .

Find the value of the expressions, when a= -1" and "b= 3 a^(2)+b^(2)+2ab

Find the values of the following polynomials at a = -2 and b = 3 : a^3 + 3a^2b + 3ab^2 + b^3

Find the values of the following polynomials at a = -2 and b = 3 : a^3 - 3a^2b + 3ab^2 - b^3

Find the value of the expressions, when a= -1" and "b= 3 5a^(2)+4ab^(2)-8a^(2)b .

Find the values of the following polynomials at a = -2 and b = 3 : a^2 + b^2 - ab- b^2-a^2

Find the values of each of the following expressions for a=1,b=2 and c=-1a^(3)+b^(3)+c^(3)-3abca^(2)+b^(2)+c^(2)-ab-bc-ca

Simplify and find the value of the following expression when a=3 and b=1: 4(a^2+b^2+2a b)-[4(a^2+b^2-2a b)-{-b^3+4(a-3)}]