Question

2x²-65=33 resultado porfavor
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Answer 1

2x^2 - 65 = 33

2x^2 = 33 + 65

2x2 = 98

2x^2 / 2 = 98 / 2

x^2 = 49

√x^2 = ±√49

x = ± 49

C .S. = {7 , - 7}

Comprobación

2(7)^2 - 65 = 33

2(49) - 65 = 33

98 - 65 = 33

33 = 33

2(-7)^2 - 65 = 33

2(49) - 65 = 33

98 - 65 = 33

33 = 33

Answer 2

Respuesta:

x = 7

Explicación paso a paso:

2x² - 65 = 33

2x²  = 33 + 65

2x² = 98

x² = 98/2

x² = 49

√x² = √49

x = 7

Comprobación:

2*7² - 65 = 33

2*49 - 65 = 33

98 - 65 = 33