To solve the equation 4.2x * 1x = 1.28, we can combine the x terms by multiplying them together.
4.2x * x = 1.28
Simplifying further, we get:
4.2x^2 = 1.28
To solve for x, we divide both sides of the equation by 4.2:
x^2 = 1.28 / 4.2
x^2 = 0.305
Taking the square root of both sides, we get:
x = ±√0.305
Therefore, the solutions to the equation are x = √0.305 and x = -√0.305.
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