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प्रश्न
The sum of –7pq and 2pq is ______.
पर्याय
–9pq
9pq
5pq
– 5pq
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उत्तर
The sum of –7pq and 2pq is – 5pq.
Explanation:
Given, monomials are –7pq and 2pq.
∴ Their sum = –7pq + 2pq = (–7 + 2)pq ...[Both monomials consist of like terms, so adding their numerical coefficient]
= – 5pq
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संबंधित प्रश्न
Add the following:
l2 + m2, m2 + n2, n2 + l2, 2lm + 2mn + 2nl
Simplify combining like terms: 5x2y − 5x2 + 3y x2 − 3y2 + x2 − y2 + 8xy2 −3y2
Add: a + b - 3, b - a + 3, a - b + 3
Add: 3p2q2 - 4pq + 5, - 10p2q2, 15 + 9pq + 7p2q2
What should be taken away from 3x2 - 4y2 + 5xy + 20 to obtain - x2 - y2 + 6xy + 20?
From the sum of 4 + 3x and 5 - 4x + 2x2, subtract the sum of 3x2 - 5x and -x2 + 2x + 5.
Subtract:
\[x^2 y - \frac{4}{5}x y^2 + \frac{4}{3}xy \text { from } \frac{2}{3} x^2 y + \frac{3}{2}x y^2 - \frac{1}{3}xy\]
Add: −9y, 11y, 2y
Simplify: p + p + 2 + p + 3 + p – 4 – p – 5 + p + 10
Each symbol given below represents an algebraic expression:
= 2x2 + 3y, 
= 5x2 + 3x, 
= 8y2 – 3x2 + 2x + 3y
The symbols are then represented in the expression:
Find the expression which is represented by the above symbols.
