Determina el valor numerico de las siguientes expresiones algebraicas...
Respuestas a la pregunta
Respuesta:
:)
Explicación paso a paso:
a. 3x²y - 2xy² =
3(-2)²(3) - 2(-2)(3)² =
3(4)(3) - 2(-2)(9) =
24 - (-36) =
24 + 36 =
60
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b. -1/2x³y² + 3x²z² =
-1/2(-2)³(3)² + 3(-2)²(4)² =
-1/2(-8)(9) + 3(4)(16) =
36 + 192 =
228
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c. x²(y-2) - y(x+2) + 3y³ =
(-2)²(3-2) - 3((-2)+2) + 3(3)³ =
(4)(1) - 3(0) + 3(27) =
4 - 0 + 81 =
85
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d. 2/3x³y²z - 5x²y³z² + 10 =
2/3(-2)³(3)²(4) - 5(-2)²(3)³(4)² + 10 =
2/3(-8)(9)(4) - 5(4)(27)(16) + 10 =
-576/3 - 8640 + 10 =
-192 - 8640 + 10 =
-8832 + 10 =
-8822
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e. 3/4xy²z³ - x²y³z² + x³y²z³ - 1/2 =
3/4(-2)(3)²(4)³ - (-2)²(3)³(4)² + (-2)³(3)²(4)³ - 1/2 =
3/4(-2)(9)(64) - (4)(27)(16) + (-8)(9)(64) - 1/2 =
-3456/4 - 1728 + (-4608) - 1/2 =
-864 - 1728 - 4608 - 1/2 =
-7200 - 1/2 =
-14400/2 - 1/2 =
-14399/2