Question

if 2x3y5z is exactly divisible by 3 find x+y+z

Answer 1

Answer:

Let us first divide 2x

4

−5x

3

+2x

2

−x+a by x

2

−3x+2 as shown in the above image.

From the division, we observe that 2x

2

+x+1 is the quotient and a−2 is the remainder.

Now, to find the value of a, we equate the remainder to 0 as shown below:

a−2=0

⇒a=2

Hence, a=2.

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