Subtituting the quadratic formula
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Subtituting the quadratic formula
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You can substitute a value from one equation to solve the second equation. This is called substitution. The key is that the value of the variables will be the same in both equations. This means that if you figure out that x=5 in the first equation, x=5 in the second equation, too.
Answer:
First, we bring the equation to the form ax²+bx+c=0, where a, b, and c are coefficients. Then, we plug these coefficients in the formula: (-b±√(b²-4ac))/(2a)