<span>(a+b)(c+d)=ab+ad+bc+bd
(5k-4)(4k-5)=20k^2+-25k-16k+20=20k^2-41k+20
Hope this helps!</span>
Answer:
2
Step-by-step explanation:
Answer:
Step-by-step explanation:
= ( √9 )³ = 27
= ∛27 = 3
= ( ∛125 )² = 25
,
,
Try to put all the x-es on one side and then find a value of one x. In this case:
x + 36 = 4x / -x (both sides)
36 = 3x / :3 (both sides)
x = 12