Advertisements
Advertisements
Question
Find the sum of the following expressions
mn + t, 2mn – 2t, – 3t + 3mn
Solution
(mn + t) + (2mn – 2t) + (– 3t + 3mn)
= mn + t + 2mn – 2t + (– 3t) + 3mn
= (mn + 2mn + 3mn) + (t – 2t – 3t)
= (1 + 2 + 3)mn + (1 – 2 – 3)t
= 6mn + (1 – 5)t
= 6mn + (– 4)t
= 6mn – 4t
APPEARS IN
RELATED QUESTIONS
Add the following:
a − b + ab, b − c + bc, c − a + ac
Add the following:
l2 + m2, m2 + n2, n2 + l2, 2lm + 2mn + 2nl
Add: x2 - y2 - 1 , y2 - 1 - x2, 1- x2 - y2
Subtract: - 5y2 from y2
Subtract:
\[\frac{2}{3} y^3 - \frac{2}{7} y^2 - 5 \text { from }\frac{1}{3} y^3 + \frac{5}{7} y^2 + y - 2\]
If \[x - \frac{1}{x} = 3,\] find the values of \[x^2 + \frac{1}{x^2}\] and \[x^4 + \frac{1}{x^4} .\]
Solve the following equation.
10 = 2y + 5
The additive inverse of −37xyz is ___________
Simplify: n + (m + 1) + (n + 2) + (m + 3) + (n + 4) + (m + 5)
Add: 2a + b + 3c and `"a" + 1/3"b" + 2/5"c"`
