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प्रश्न
Multiply: x + 4 by x − 5
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उत्तर
(x + 4)( x − 5) = x( x − 5) + 4(x − 5)
= x2 − 5x + 4x − 20
= x2 − x − 20
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|
First monomial→ |
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|
Second monomial ↓ |
||||||
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