Advertisements
Advertisements
प्रश्न
Simplify : (5 – x) (6 – 5x) (2 -x).
Advertisements
उत्तर
(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
APPEARS IN
संबंधित प्रश्न
Multiply: 6x3 − 5x + 10 by 4 − 3x2
Simplify: (5a + 5b – c) (2b – 3c)
Simplify : (4x – 5y) (5x – 4y)
The base and the altitude of a triangle are (3x – 4y) and (6x + 5y) respectively. Find its area.
Find the value of (3x3) × (-5xy2) × (2x2yz3) for x = 1, y = 2 and z = 3.
If x = 2 and y = 1; find the value of (−4x2y3) × (−5x2y5).
Evaluate: (3x – 2)(x + 5) for x = 2.
Evaluate: xz (x2 + y2) for x = 2, y = 1 and z= 1.
Multiply and then verify :
−3x2y2 and (x – 2y) for x = 1 and y = 2.
Multiply: 2x2 – 4x + 5 by x2 + 3x – 7
