Question

10. Dacă a = 23 şi b + c = 9, calculati:
a) ab + ac =
c) ab + ac-48 =
b) 5a + 3b + 3 =
d) 9b + 9c-3a-
e) 23b + ac
1) 9a - 236-23c
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Answer 1

Răspuns:

Explicație pas cu pas:

a=23

b+c=9

a) ab+ac = a(b+c) = 23*9 = 207

b) ab+ac-48 = a(b+c)-48 = 23*9-48 = 159

c) 5a+3b+3 = 5*23+3b+3 = 3b+118

d) 9b+9c-3a = 9(b+c)-3*23 = 9*9-69 = 81-69 = 12

e) 23b+ac = 23b+23c = 23(b+c) = 23*9 = 207

f) 9a-236-23c = 9*23-236-23c = 207-236-23c = -29-23c