Answer:
Step-by-step explanation:
1) √2 + 2√2 = ( 1 + 2 ) √2 = 3*√2 = 3√2
4) √8 + √2 = √2*2*2 + √2 = 2√2 + √2 = ( 2 +1 ) √2 = 3√2
7) 2√5 - √5 = (2 - 1)√5 = 1 √5
10 3√5 - 2√5 = (3 - 2) √5 = 1√5
Grouping similar factors together makes this easier:
(8)(2)(10^7)(10^6) = 16(10^13) = 1.6(10^14)
X = -17/8
Do you need explanation?
Answer:
17.5
Step-by-step explanation:
3a = 15
a =5 .
3 x 5 = 15
2b = 5
15 + 5 = 20
----------------------------
b = 2.5
2.5 ( B ) + 15 ( 3a ) = 17.5
Number 3 / last one is -49 hoped I helped you