6x217x7 divide x2 your answer should give the quotient and
(6x^2+17x+7) divide ( x+2). your answer should give the quotient and the remainder.
Solution
we have (6x^2+17x+7) and divisor (x+2).
Using long divison method
first we need to multiply our divisor by a term so that the first term of product should match the first term of dividend.
so we multiply our divisor by \"6x\" to get 6x^2 as the first term. (6x *(x+2) = 6x^2 + 12x ) and we write \"6x\" in the quotient
divisor dividend quorient
x+2 6x^2+17x+7 6x + 5
6x^2+12x now we reverse the sign of the product (6x^2 +12x) as (-6x^2 -12x) and add them
- - so that we can eliminate the first term (6x^2 of the dividend and -6x^2 of the product gets cancel)
we get \"5x\" from 17x -12x and then we copy down 7 with \"5x\" term
5x + 7 now in order to cancel 5x we need to multiply divisor by \"5\" and we write \"+5\" in quotient
5x +10
- - we again change the sign and cancel the terms
we add (5x+7) and (-5x -10) we get \"-3\" now we cannot multiply our divisor witha linear term to get \"-3\"
so we get \"-3\" this is our remainder and (6x+5) as quotient (ANSWER)
divisor dividend quorient
x+2 6x^2+17x+7 6x + 5
6x^2 +12x
- -
5x +7
5x +10
- -
-3 remainder
