{"id":10827,"date":"2022-05-31T13:43:13","date_gmt":"2022-05-31T08:13:13","guid":{"rendered":"https:\/\/mathemerize.com\/?p=10827"},"modified":"2022-05-31T13:43:14","modified_gmt":"2022-05-31T08:13:14","slug":"if-the-polynomial-x4-6x3-16x2-25x-10-is-divided-by-another-polynomial-x2-2x-k-the-remainder-comes-out-to-x-a-find-x-and-a","status":"publish","type":"post","link":"https:\/\/mathemerize.com\/if-the-polynomial-x4-6x3-16x2-25x-10-is-divided-by-another-polynomial-x2-2x-k-the-remainder-comes-out-to-x-a-find-x-and-a\/","title":{"rendered":"If the polynomial \\(x^4 – 6x^3 + 16x^2 – 25x + 10\\) is divided by another polynomial \\(x^2 – 2x + k\\), the remainder comes out to x + a, find x and a."},"content":{"rendered":"
Let us divide \\(x^4 – 6x^3 + 16x^2 – 25x + 10\\) by \\(x^2 – 2x + k\\)<\/p>\n
<\/p>\n
\\(\\therefore\\)\u00a0 Remainder = (2k – 9)x – (8 – k)k + 10<\/p>\n
But the remainder is given as x + a,<\/p>\n
On comparing their coefficients, we have :<\/p>\n
2k – 9 = 1\u00a0 \\(\\implies\\)\u00a0 k = 5<\/p>\n
and -(8 – k)k + 10 = a<\/p>\n
So, a = -(8 – 5)5 + 10<\/p>\n
a = -15 + 10 = – 5<\/p>\n
Hence, k = 5 and a = -5<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":" Solution : Let us divide \\(x^4 – 6x^3 + 16x^2 – 25x + 10\\) by \\(x^2 – 2x + k\\) \\(\\therefore\\)\u00a0 Remainder = (2k – 9)x – (8 – k)k + 10 But the remainder is given as x + a, On comparing their coefficients, we have : 2k – 9 = 1\u00a0 \\(\\implies\\)\u00a0 k …<\/p>\n