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 2 years ago
Find the remainder when f(x) is divided by (x  k)
f(x) = 8x^4 + 7x^3 + 5x^2  5x + 35; k = 4
 2 years ago
Find the remainder when f(x) is divided by (x  k) f(x) = 8x^4 + 7x^3 + 5x^2  5x + 35; k = 4

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RadEn
 2 years ago
Best ResponseYou've already chosen the best response.0use the remainder theorem, remainder = f(4) = .... (just plug x=4)

zordoloom
 2 years ago
Best ResponseYou've already chosen the best response.0What did you substitute for x?

ZeHanz
 2 years ago
Best ResponseYou've already chosen the best response.1You can use synthetic division: 4 [ 8 7 5 5 35 ] 32 156 644 2556 + 8 39 161 639 2591 < remainder Explanation of synthetic division: write out the coefficients of the powers of x, in the right order (8, 7, 5, 5 and 35) Put 4 in front (the value of k) the first coefficient, 8 goes straight down. Multiply 4 with 8, put 32 in the next column. Add the numbers: 39 Multiply 4 with 39, put 156 in the next column. Adding gives 161. Etc. the last number you get this way is the remainder!
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