Question

(20⋅b+8⋅a2)a−8⋅a , если a=60, b=15.

Answer 1

Ответ:

(20*15+8*2*60)*60-8*60

(300+960)*60-8*60

1260*60-8*60

60*(1260-8)

60*1252=75120

Answer 2

Ответ:

(20×15+8×60×2)×60-8×60=75120

правильно или неправильно не знаю

Answer 3

To solve this expression, we can substitute the values of a and b into the expression:

(20b + 8a^2)a - 8a, if a = 60, b = 15.

First, we can simplify the expression by substituting the values of a and b:

(20(15) + 8(60)^2)(60) - 8(60)

Next, we can simplify further using the order of operations (PEMDAS):

(20(15) + 8(60^2))(60) - 8(60) = (300 + 8(3,600))(60) - 480 = (300 + 28,800)(60) - 480 = 29,100(60) - 480 = 1,746,000 - 480 = 1,745,520

Therefore, when a = 60 and b = 15, the expression (20b + 8a^2)a - 8a is equal to 1,745,520.