A²-28=3a this has to be answed by factoring but idk how... help >_

(a + 4)(a - 7)

Step-by-step explanation:

a^2 - 3a - 28

Factors of 28: 1, 2, 4, 7, 14, 28

4 - 7 = -3

(a + 4)(a - 7)

now to check:

(a • a) + (a • -7) + (4 • a) + (4 • -7)

(a^2) + (-7a) + (4a) + (-28)

a^2 - 7a + 4a - 28

a^2 - 3a - 28

step-by-step explanation:

. your answer will contain x - and y -terms. (1 point) x ( ¿¿ 2 − 7 ) 2 +( y 2 − 9 ) 2 √ ¿ 12. what is the distance from the directrix (the crocodile river) to the point ( x , y )? write this equation. your answer will contain a y -term.

answer: 1,380

step-by-step explanation:

1: you turn %15 into a decimal by moving the decimal point two places to the left.

2: and then you multiply .15 by 1,200 , which will get you 180.00

3: from there you will add 180 to 1,200

4: which will get you 1,380

hope it *im kind of slow so idk if my answer is right*