Answer:
C. -7x^2 - 28
Step-by-step explanation:
Firstly simplify the bracket before doing anything;
4x(3x - 7) = 12x^2 - 28x
then go back to the question and substitute the expression(12x^2 - 28x) on the bracket and then work out the question;
12x^2 - 28x -19x^2...then group the values with the same exponent of x,
(12x^2 - 19x^2) - 28x
; -7x^2 - 28x
Answer:
285
Step-by-step explanation:
4(5x15-2)-7
4(75-2)-7
4x73-7
292-7
285
Answer:
you can find angle E by
Step-by-step explanation:
sum of angles of traingle is 180 degree
point R ((:
reason being (-5,-6) over the y axis is (5, -6)
Answer:
B
Step-by-step explanation:
45-45-90 rt. triangle
