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प्रश्न
Simplify : (px – q) (px + q)
योग
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उत्तर
(px – q) (px + q) = px(px + q) – q(px + q)
= p2x2 + pxq – pqx – q2
= p2x2 – q2
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Multiplying a Polynomial by a Polynomial
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