Question

find the difference.(-8 - k ) (-2k +7 )

Answer 1

-15 + k

Answer 2

the answer got to start with -3k

Answer 3

Simplifying
(-8 + -1k)(-2k + 7)

Reorder the terms:
(-8 + -1k)(7 + -2k)

Multiply (-8 + -1k) * (7 + -2k)
(-8(7 + -2k) + -1k * (7 + -2k))
((7 * -8 + -2k * -8) + -1k * (7 + -2k))
((-56 + 16k) + -1k * (7 + -2k))
(-56 + 16k + (7 * -1k + -2k * -1k))
(-56 + 16k + (-7k + 2k2))

Combine like terms: 16k + -7k = 9k
(-56 + 9k + 2k2)
source- algebrahelp.com

Answer 4

foil\[16k-56+2k^2-7k=2k^2+9k-56\]

Answer 5

the difference of these terms can not start with -3k.
Their sum can.