Answer:
3. 4a(a + 1) - 15
step-by-step explanation:
1. (x +y)² + 11 (x + y) + 30
= x + y {(x +y) + 11} + 30
2. (a - b)² - 16(a - b) + 60
= (a - b){(a - b) - 16} + 60
3. 4a² + 4a - 15) - 15
4. 2x² + 5x + 2
= x(2x + 5) + 2
Answer:
c
Step-by-step explanation:
because there is a 3 in front of the root it is a cubed root since
2= square- the two is invisible but its there
3= cubed
Answer:
Solve the inequality k + 6 ≤ 21;
(A)k ≥ 27
<u>(B)k ≤ 15 </u>
(C)k ≥ 15
(D)k ≤ 27
Step-by-step explanation:
Answer:
5(5k²+6)(4k-3)
Step-by-step explanation:
100k³ - 75k² + 120k - 90
Take 5 common above:
= 5(20k³ - 15k² + 24k - 18) ------- eq1
First let simplify 20k³ - 15k² + 24k - 18
= (20k³ - 15k²) + (24k - 18) ---------eq2
Factor out 6 from 24k - 18 :
6(4k-3)
Factor out 5k² from (20k³ - 15k²):
5k²(4k -3)
eq2 becomes: = 6(4k-3) + 5k²(4k -3)
Factor out common term 4k-3
(6+ 5k²)(4k -3) or (5k²+6)(4k-3)
Thus eq1 becomes:
5(5k²+6)(4k -3)