solve this plzz
polynomials chapter
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here is your ans.
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If f(x) = 3x+5
then f (7) = 7×3 +5 ; f(5) = 5×3 +5
= 21+5 = 26 = 15 +5 = 20
Therefore, f(7) - f(5) = 26 - 20 = 6 (ans)
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