Czy to równanie da się rozwiązać jeśli tak to jak ?
x^2 + 5x = 9
x^2 + 5x - 9 = 0
a = 1, b = 5, c = - 9
delta = b^2 - 4ac
delta = 5^2 - 4*1*(-9) = 25 +36 = 61
x1 = [ - b - p(delty)]/(2a)
x2 = [ -b + p(delty)]/(2a)
zatem
x1 = [ - 5 - p(61)]/2
x2 = [ - 5 + p(61)]/2
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