Before combining the real parts and the imaginary parts, line them up vertically as follows:
4 + 4i
-13 - 17i
-------------- Now add up each column.
-9 - 13i (Answer A)
4x(3x²+5y) expand by distributing terms
4x*3x²+4x*5y take out the constants
(4*3)xx²+4x*5y simplify 4*3 to 12
12xx²+4x*5y use product rule=xᵃxᵇ=xᵃ+ᵇ, and change the two variables (the x's) into ones, because if there is just one variable with no number by it, then it is a one.
12x¹⁺²+4x*5y and simplify 1+2 to 3.
12x³+4x*5y finally simplify 4x*5y to 20xy
12x³+20xy
Hope this helps, now you know the answer and how to do it. Stay healthy and safe and HAVE A BLESSED AND WONDERFUL DAY! :-)
- Cutiepatutie ☺❀❤
Answer: Mark brainliest if satisfied
m<B=72 degrees
m<C= 36 degrees
Step-by-step explanation:
m<B is congruent to m<A
72 times 2 equals 144
180 minus 144 equals 36
