Answer:
A
Step-by-step explanation:
Answer:
390
Step-by-step explanation:
Answer:
1) 11
2) 2
3) 
4) 
5) -2
6) 
Step-by-step explanation:
1) 2
+ 3
- 
=(2 × 2
)+ (3 × 4
) - 5
= 4
+ 12
- 5
= 11
2) 4
-2
+ 
= (4 × 2
) - (2 × 7
) + 8
= 8
- 14
+8
= 2
3) 5
- 3
= 5×
- 3×
+ 4×
+ 2×
= 
= 
4) 
= 
= 
5) 
= 
= -2
6) 
= 
= 2×
- 2×
- 
= 
= 
Hope the working out is clear and will help you. :)
Answer:
x = -1,5
Step-by-step explanation:
2x² - 8x - 10
2x² - 10x + 2x - 10
2x(x - 5) + 2(x - 5)
(x - 5)(2x + 2)
x = 5 x = -2/2
x = -1,5