Advertisements
Advertisements
प्रश्न
3x + 23x2 + 6y2 + 2x + y2 + ______ = 5x + 7y2.
Advertisements
उत्तर
3x + 23x2 + 6y2 + 2x + y2 + –23x2 = 5x + 7y2.
Explanation:
Let (3x + 23x2 + 6y2 + 2x + y2) + M = 5x + 7y2
⇒ M = (5x + 7y2) – (3x + 23x2 + 6y2 + 2x + y2)
⇒ M = 5x + 7y2 – 3x – 23x2 – 6y2 – 2x – y2 ...[With –ve sign, +ve sign in the bracket will change on opening it]
⇒ M = 5x – 3x – 2x + 7y2 – 6y2 – y2 – 23x2
M = 0 + 0 – 23x2 = –23x2
APPEARS IN
संबंधित प्रश्न
In -5x3y2z4 ; write the coefficient of y2 Also, write the degree of the given algebraic expression.
Simplify: p + q – (p – q) + (2p – 3q)
Simplify: 9x + 5 – [4x – {3x – 2 (4x – 3)}]
The numerical co-efficient of −7mn is
Area of a rectangular plot with sides 4x2 and 3y2 is ______.
Factorise the following expression.
24x2yz3 – 6xy3z2 + 15x2y2z – 5xyz
Identify the numerical coefficient of term (other than constant) in the following expression:
− p2q2 + 7pq
Identify the term and its factor in the following expression.
Show the term and factor by tree diagram.
5xy2 + 7x2y
Identify term and factor in the expression given below:
1.2 ab – 2.4 b + 3.6 a
Write the coefficient of x2 in the following:
x2 – x + 4
