Factor x3 – 4x2 + 7x – 28 by grouping. what is the resulting expression?
(x2 – 4)(x + 7)
(x2 + 4)(x – 7)
(x2 – 7)(x + 4)
(x2 + 7)(x – 4)

Consider polynomial You can group first two terms and last two terms:

In first brackets the common factor is and in second brackets the common factor is 7, then

the correct answer is D.

i honestly dont know

given the equation is 8+9z=-6, the first step would be to subtract the 8 from both sides:

8+9z-8=-6-8

since 8 minus 8 = 0, this would cancel out the 8. and since -6 minus 8 equals -14, the equation would look like this

9z = -14