Prove that: 7^16+7^14 is divisible by 50. Please help!!

True

7^16+7^14=7^14(7^2+1)=7^14(49+1)=7^14*50 divisible by 50

7^16/7^14=7^(16-14)=7^2

7^14/7^14=1 or 7^14/7^14=7^(14-14)=7^0=1

a^m:a^n=a^(m-n)

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c