Answer:
It would be the 2nd option
Step-by-step explanation:
I hope this helps :)
Answer:
(5r + 6)(5r² + 4)
Step-by-step explanation:
Given
25r³ + 30r² + 20r + 24 ( factor the first/second and third/fourth terms )
= 5r²(5r + 6) + 4(5r + 6) ← factor out (5r + 6) from each term
= (5r + 6)(5r² + 4)
Answer:
c
Step-by-step explanation:
6x² + 54x + 120 = 0
divide by 6
x² + 9x + 20 = 0
(x² + 5x) + (4x + 20) = 0
x(x + 5) + 4(x + 5) = 0
(x + 4) (x + 5) = 0
x + 4 = 0, x + 5 = 0
x = -4, x = -5
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<span>y = -x3 + 5x2 - 11x + 55 ||x = 5 one root -125 + 125 - 55 + 55 = 0
using Synthetic Divsion
5 -1 5 -11 55
-5 0 -55
</span><span>-1 0 -11 0
results in:
-x^2 - 11 = 0
x^2 + 11 = 0
x^2 = -11
x = ± i√11
roots are: i√11,-i√11,5</span>