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

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RadEnBest ResponseYou've already chosen the best response.0
use the remainder theorem, remainder = f(4) = .... (just plug x=4)
 one year ago

zordoloomBest ResponseYou've already chosen the best response.0
What did you substitute for x?
 one year ago

ZeHanzBest ResponseYou've already chosen the best response.1
You 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!
 one year ago
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