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Rose
Mathematics
1 October, 06:06
How do i do 2 x squared + 7=4
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Marcelo Daugherty
1 October, 06:24
0
x = ±i sqrt (3/2)
Step-by-step explanation:
2x^2+7 = 4
Subtract 7 from each side
2x^2+7-7 = 4-7
2x^2 = - 3
Divide by 2 on each side
2x^2/2 = - 3/2
x^2 = - 3/2
There is no real solution, only imaginary solutions
Taking the square root of each side
sqrt (x^2) = sqrt (-3/2)
x = ±i sqrt (3/2)
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