(7e+3)(7e-3)=

Solution for (7e+3)(7e-3)= equation:

Simplifying
(7e + 3)(7e + -3) = 0

Reorder the terms:
(3 + 7e)(7e + -3) = 0

Reorder the terms:
(3 + 7e)(-3 + 7e) = 0

Multiply (3 + 7e) * (-3 + 7e)
(3(-3 + 7e) + 7e * (-3 + 7e)) = 0
((-3 * 3 + 7e * 3) + 7e * (-3 + 7e)) = 0
((-9 + 21e) + 7e * (-3 + 7e)) = 0
(-9 + 21e + (-3 * 7e + 7e * 7e)) = 0
(-9 + 21e + (-21e + 49e2)) = 0

Combine like terms: 21e + -21e = 0
(-9 + 0 + 49e2) = 0
(-9 + 49e2) = 0

Solving
-9 + 49e2 = 0

Solving for variable 'e'.

Move all terms containing e to the left, all other terms to the right.

Add '9' to each side of the equation.
-9 + 9 + 49e2 = 0 + 9

Combine like terms: -9 + 9 = 0
0 + 49e2 = 0 + 9
49e2 = 0 + 9

Combine like terms: 0 + 9 = 9
49e2 = 9

Divide each side by '49'.
e2 = 0.1836734694

Simplifying
e2 = 0.1836734694

Take the square root of each side:
e = {-0.428571429, 0.428571429}