Advertisements
Advertisements
Question
Simplify : (5 – x) (6 – 5x) (2 -x).
Sum
Advertisements
Solution
(5 – x) (6 – 5x) (2 -x)
[(5 – x) (6 – 5x)] (2 -x)
[(5(6 – 5x) − x (6 − 5x)] (2 -x)
[30 − 25x − 6x + 5x2] (2 − x)
(5x2 − 31x + 30) (2 − x)
2(5x2 − 31x + 30) − x (5x2 − 31x + 30)
10x2 − 62x + 60 − 5x3 + 31x2 − 30x
−5x3 + 10x2 + 31x2 − 62x − 30x + 60
−5x3 + 41x2 − 92x + 60
shaalaa.com
Multiplying a Polynomial by a Polynomial
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Multiply: 2y − 4y3 + 6y5 by y2 + y − 3
Multiply:
5p2 + 25pq + 4q2 by 2p2 − 2pq +3q2
Simplify : (7x – 8) (3x + 2)
Simplify: (5a + 5b – c) (2b – 3c)
Simplify : (3y + 4z) (3y – 4z) + (2y + 7z) (y + z)
Find the value of (3x3) × (-5xy2) × (2x2yz3) for x = 1, y = 2 and z = 3.
Evaluate: (3x – 2)(x + 5) for x = 2.
Evaluate: 2x(3x – 5) – 5(x – 2) – 18 for x = 2.
Multiply: 2x2 – 4x + 5 by x2 + 3x – 7
Multiply: (ab – 1) (3 – 2ab)
