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प्रश्न
Multiply: 2x2 – 4x + 5 by x2 + 3x – 7
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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
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5p2 + 25pq + 4q2 by 2p2 − 2pq +3q2
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Multiply -4xy3 and 6x2y and verify your result for x = 2 and y= 1.
Evaluate (x5) × (3x2) × (-2x) for x = 1.
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Evaluate: x(x – 5) + 2 for x = 1.
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Multiply and then verify :
−3x2y2 and (x – 2y) for x = 1 and y = 2.
