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प्रश्न
(x + a)(x + b) = x2 + (a + b)x + ______.
रिकाम्या जागा भरा
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उत्तर
(x + a)(x + b) = x2 + (a + b)x + ab.
Explanation:
We have,
(x + a)(x + b) = x2 + bx + ax + ab
= x2 + (a + b)x + ab
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