3. Find the product of 8s” (19 - 2st) and verify the result when s 1 and t 5. 1. Find the product of 2x® (7y + 14x) and verify the result when x2 and y. 3. 5. Find the product of 0.2 xy (3x + 2y) and verify the result when x-5 and y - 1 6. Simplify: () ab(a? - b) + b (a - 2b) (0) - 6x” (xy + 2y) - 3y (2x + y) (II) 2x(x - y) = 3)(xy + 2x) = xy(x + y)
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Answer:
s = 1 and t = 5.
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\bf 8s( {t}^{2} - 2st)8s(t2−2st)
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By putting value of s and t in the equation
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\bf \implies 8 \times {1}^{2} ( {5}^{2} - 2 \times (1)(5))⟹8×12(52−2×(1)(5))
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\bf \implies8 \times 1(25 - 2 \times 5)⟹8×1(25−2×5)
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\bf\implies8(25 - 10)⟹8(25−10)
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\bf\implies8 \times 15⟹8×15
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\bf\implies120⟹120
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