Simplificando a expressão:
3V2 -2 V18 +3 V72, obtemos:
a) 3V2
b) 24V2
c) 15V2
d) -15V2
V = simbolo da raiz quadrada
(C)
3V2-2V2.3²+3V2².2.3²
3V2-2.3V2+3.2.3V2
3V2-6V2+18V2
-3V2+18V2 = 15V2
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3â2 - 2â18 + 3â72 =
3â2 - 2â(9*2) + 3â(36*2) =
3â2 - 6â2 + 18â2 = 15â2 (C)
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Verified answer
(C)
3V2-2V2.3²+3V2².2.3²
3V2-2.3V2+3.2.3V2
3V2-6V2+18V2
-3V2+18V2 = 15V2
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3â2 - 2â18 + 3â72 =
3â2 - 2â(9*2) + 3â(36*2) =
3â2 - 6â2 + 18â2 = 15â2 (C)
pronto