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
Any integer can be the degree of the expression
Find the degree of the following terms.
−7ab
Find the degree of the following terms.
12pq2r2
Find the degree of the following expression.
x3 – 1
Find the degree of the following expression.
5 – 9y + 15y2 – 6y3
Add and find the degree of the following expressions.
(9x + 3y) and (10x – 9y)
Simplify and find the degree of the following expression.
9a4 – 6a3 – 6a4 – 3a2 + 7a3 + 5a2
Identify the degree of the expression, 2a3bc + 3a3b + 3a3c – 2a2b2c2
Find the degree of (2a2 + 3ab – b2) – (3a2 – ab – 3b2)
Find the value of w, given that x = 3, y = 4, z = – 2 and w = x2 – y2 + z2 – xyz
