Find the value of x 17x-1=16x+2
1 answer:
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Without any calculations it's evident it can't be neither B (both numbers are even, so they're divisible by 2) nor C (the numbers end in 0 and 5, so they're divisible by 5).
A.
Both numbers have a factor of 3, so they're not relatively prime.
That means it must be D. But, let's check it.
Indeed, those two numbers are relatively prime.
A.
Both numbers have a factor of 3, so they're not relatively prime.
That means it must be D. But, let's check it.
Indeed, those two numbers are relatively prime.
(X+3)^2 -(X)^2
(X^2+6x+9) - X^2
6x+9
(X^2+6x+9) - X^2
6x+9