Advertisements
Advertisements
Question
If X = 5x2 + 7x + 8 and Y = 4x2 – 7x + 3, then find the degree of X + Y
Advertisements
Solution
Given: X = 5x2 + 7x + 8 and Y = 4x2 – 7x + 3
X + Y = 5x2 + 7x + 8 + (4x2 – 7x + 3)
= (5x2 + 4x2) + (7x – 7x) + (8 + 3)
= x2(5 + 4) + x(7 – 7) + (8 + 3)
= 9x2 + 11
Degree of the expression is 2.
APPEARS IN
RELATED QUESTIONS
The degree of the expression −4x2 yz is −4
Find the degree of the following terms.
−125
Find the degree of the following expression.
u5 + u4v + u3v2 + u2v3 + uv4
Add and find the degree of the following expressions.
(k2 – 25k + 46) and (23 – 2k2 + 21k)
Add and find the degree of the following expressions.
(3m2n + 4pq2) and (5nm2 – 2q2p)
Simplify and find the degree of the following expression.
10x2 – 3xy + 9y2 – (3x2 – 6xy – 3y2)
Simplify and find the degree of the following expression.
9a4 – 6a3 – 6a4 – 3a2 + 7a3 + 5a2
Simplify and find the degree of the following expression.
4x2 – 3x – [8x – (5x2 – 8)]
If p(x) and q(x) are two expressions of degree 3, then the degree of p(x) + q(x) is
The two adjacent sides of a rectangle are 2x2 – 5xy + 3z2 and 4xy – x2 – z2. Find the perimeter and the degree of the expression
