Răspuns :
Răspuns:
P = (4+1)(2×4+11)-(3×4-7)
P = 5×19-5
P = 5(19-1)
P = 5×18
P = 90
P = (9+5)-(2×9-4)(3×9+3)
P = 14-14×30
P = 14(1-30)
P = 14×(-29)
P = (-406)
x = 4
P = (4 + 1) • (2 • 4 + 11) - (3 • 4 - 7)
P = (4 + 1) • (8 + 11) - (12 - 7)
P = 5 • 19 - 5
P = 95 - 5
P = 90
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y = 9
P = (9 + 5) - (2 • 9 - 4) • (3 • 9 + 3)
P = 14 - (18 - 4) • (27 + 3)
P = 14 - 14 • 30
P = 14 - 420
P = - 406