Question 10(Multiple Choice Worth 1 points)
(07.03 MC)

Factor completely 8x2 − 4x − 84.

4(2x − 3)(x + 7)
4(2x + 3)(x − 7)
4(x − 3)(2x + 7)
4(x + 3)(2x − 7)

Good morning ☕️

4(x + 3)(2x − 7)

Step-by-step explanation:

4(x + 3)(2x − 7) = 4(2x² − 7x + 6x − 21)

                        = 4(2x² − x − 21)

                        = 8x² − 4x − 84

:)

b

step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (3, - 5) ← 2 points on the line

m = = = - 3

with m = - 3 and (a, b) = (3, - 5), then

y - (- 5) = - 3(x - 3), that is

y + 5 = - 3(x - 3) → b