Ex.12.1 Q6 Algebraic Expressions Solution - NCERT Maths Class 7
Question
State whether a given pair of terms is of like or unlike terms.
(i) \(1, 100\)
(ii) \(–7x, x\)
(iii) \(– 29x, – 29y\)
(iv) \(14xy, 42yx\)
(v) \(4m^2p, 4mp^2\)
(vi) \(12xz, 12x^2z^2\)
Text Solution
S.No. |
Expression |
Terms |
Factors |
Like/ Unlike |
Reason |
(i) |
\(1, 100\) |
\(1\) and \(100\) |
\(1\) and \(100\) |
Like |
Bothe the terms has no variables |
(ii) |
\(–7x, x\) |
\(–7x\) and |
\(–7, x\) and |
Like |
Both terms have same variable \(x\) |
(iii) |
\(– 29x, – 29y\) |
\(– 29x\) and \( – 29y\) |
\(– 29, x\) and |
Unlike |
Both terms have different variables \(x\) & \(y\) |
(iv) |
\(14xy, 42yx\) |
\(14xy\) and \(42yx\) |
\(14, x,y\) and |
Like |
Both terms have same variable \(xy\) & \(xy\) |
(v) |
\(4m^2p, 4mp^2\) |
\(4m^2p\) and \(4mp^2\) |
\(4, m^2, p\) and |
Unlike |
Both terms have same variable but with different powers |
(vi) |
\(12xz, 12x^2z^2\) |
\(12xz\) and \(12x^2z^2\) |
\(12, x ,z\) and |
Unlike |
Both terms have same variable but with different powers |