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13. Find (f . g)(x) if f(x)=7x³-5x²+42x-30 and g(x)=7x-5.
(f . g)(x)=49x⁴-269x²-150
(f . g)(x)=49x⁴+269x²+150
(f . g)(x)=49x⁴-70x³+319x²-420x+150
(f. g)(x)=49x⁴+70x³-319x²+420x-150

13 Find f gx if fx7x5x42x30 and gx7x5 f gx49x269x150 f gx49x269x150 f gx49x70x319x420x150 f gx49x70x319x420x150 class=

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