X^2 - 13 x = -36
add 36 to both sides
x^2 - 13x +36 = 0
figure out the factor
(x-4)(x-9) = 0
so (x-4) or (x-9) equals 0
so solution is
x-4=0 add 4 to both sides and get x = 4
x-9=0 add 9 to both sides and get x=9
x={ 4, 9}
Answer: 7 + 1/2n
”more” means to add an additional value.
:)
(7 + i) - (6 - 2i) = 7 + i - 6 + 2i = 1 + 3i
