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प्रश्न
Multiply: 2x2 – 4x + 5 by x2 + 3x – 7
उत्तर
2x2 – 4x + 5 by x2 + 3x – 7
(2x2 – 4x + 5) × (x2 + 3x – 7)
2x2(x2 + 3x − 7) − 4x(x2 + 3x − 7) + 5(x2 + 3x − 7)
2x4 + 6x3 − 14x2 − 4x3 − 12x2 + 28x + 5x2 + 15x − 35
2x4 + 6x3 − 4x3 − 14x2 − 12x2 + 5x2 + 28x + 15x − 35
2x4 + 2x3 − 21x2 + 43x − 35
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संबंधित प्रश्न
Multiply: 2y − 4y3 + 6y5 by y2 + y − 3
Simplify : (px – q) (px + q)
Simplify : (4x – 5y) (5x – 4y)
Simplify : (3y + 4z) (3y – 4z) + (2y + 7z) (y + z)
Multiply -4xy3 and 6x2y and verify your result for x = 2 and y= 1.
Find the value of (3x3) × (-5xy2) × (2x2yz3) for x = 1, y = 2 and z = 3.
Evaluate: xy2(x – 5y) + 1 for x = 2 and y = 1.
Evaluate: 2x(3x – 5) – 5(x – 2) – 18 for x = 2.
Multiply and then verify :
−3x2y2 and (x – 2y) for x = 1 and y = 2.
Simplify : (5 – x) (6 – 5x) (2 -x).
