Answer: The answer is = 2x^2 -11x-40
Step-by-step explanation: a= 2x, b=5, c= x, d =8
= 2xx + 2x (-8) + 5x +5(-8)
+ (-a)=-a
then simplify =2xx-2 -8x+5x.8
2xx=2x^2
2.8x=16x
5.8=40
=2x - 16x + 5x- 40
Answer:
123.0
Step-by-step explanation:
Answer:
square root of 16 is 4
square root of -144 is -12
square root of 289 is 17
square root of -1 is -1
square root of 1 is 1
Step-by-step explanation:
Answer:
b = 28
Step-by-step explanation:
131 + 21 + b = 180
152 + b = 180
b = 28
Answer:2.78×10^2
Step-by-step explanation:
22+52+424-220
=278
In standard form
=2.78×10^2
