X² - X = 0 quadratic polynomial
Answers
Answer:
Step-by-step explanation:
x2 + x - 2 = 0
a = 1, b = 1 and c = -2
begin mathsize 16px style straight x space equals space fraction numerator negative straight b plus-or-minus square root of straight b squared minus 4 ac end root over denominator 2 straight a end fraction equals fraction numerator negative 1 plus-or-minus square root of 1 plus 8 end root over denominator 2 end fraction equals fraction numerator negative 1 plus-or-minus square root of 9 over denominator 2 end fraction equals fraction numerator negative 1 plus-or-minus 3 over denominator 2 end fraction
rightwards double arrow straight x space equals space fraction numerator negative 1 plus 3 over denominator 2 end fraction space or space space straight x space equals space fraction numerator negative 1 minus 3 over denominator 2 end fraction
rightwards double arrow straight x space equals 1 space or space straight x space equals space minus 2 end style
Answer:
yes, it is a quadratic polynomial because it has square means 2 upper of the x