18 * 8 = 144
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x + 10 = 18 18 - 10 = x 18 -10 = 8 x = 8
-8 + 10x = 18 10x = 18+8 10x = 26 x = 26/10 x = 2.6
18
Remainder Theorem:- When f(x) is divided by (x-a) the remainder is f(a) Tor example:- f(x) x3-2x2+5x+8 divided by x-2 f(2) 8-8+10+8 = 18 So the remainder is 18 if there is no remainder then the divisor is a factor of the dividend.
If: x+7-4x+1 = -10 Then: 8-3x = -10 And: -3x = -10-8 => -3x = -18 So: x = -18/-3 => x = 6