Simplify the expression (10 + 3i)(10 - 3i)

91
109
100-30i
100+30i

Which expression is equivalent to 4 square root 6 divided by 3 root 2

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.

What is the factored form of the following expressions? d^2 – 13d + 36