Advertisements
Advertisements
Question
Simplify and find the degree of 6x2 + 1 – [8x – {3x2 – 7 – (4x2 – 2x + 5x + 9)}]
Advertisements
Solution
6x2 + 1 – [8x – {3x2 – 7 – (4x2 – 2x + 5x + 9)}]
= 6x2 + 1 – [8x – {3x2 – 7 – 4x2 – 2x + 5x + 9}]
= 6x2 + 1 – [8x – {3x2 + 7 + 4x2 – 2x + 5x + 9}]
= 6x2 – 1 – [8x + 3x2 – 7 – 4x2 + 2x – 5x – 9]
= 6x2 + 3x2 – 4x2 – 8x + 2x – 5x – 1 – 7 – 9
= x2(6 + 3 – 4) + x(8 + 2 – 5) – 15
= 5x2 – 11x – 15
Degree of the expression is 2.
APPEARS IN
RELATED QUESTIONS
The degree of the term a3b2c4d2 is ___________
The degree of m2n and mn2 are equal
Find the degree of the following expression.
5 – 9y + 15y2 – 6y3
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)
Simplify and find the degree of the following expression.
9a4 – 6a3 – 6a4 – 3a2 + 7a3 + 5a2
The degree of 6x7 – 7x3 + 4 is
Identify the degree of the expression, 2a3bc + 3a3b + 3a3c – 2a2b2c2
Find the degree of (2a2 + 3ab – b2) – (3a2 – ab – 3b2)
The two adjacent sides of a rectangle are 2x2 – 5xy + 3z2 and 4xy – x2 – z2. Find the perimeter and the degree of the expression
