what is the result of the addition of 20 and 6
Answer:
-243, 729
Step-by-step explanation:
pattern is to multiply by -3 to get next number
Answer:
x² + 4x + 20 = 12x - 5
x² + 4x - 12x + 20 + 5 = 0
x² - 8x + 25 = 0
Δ = √b² - 4ac
= √(-8)² - 4×1×25
= √64-100
= √(-36)
x ∉ R
Simple....
you can type this on your calculator...but
56*30=1680
Thus, your answer.