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asked Dec 26, 2020 76.1k views

2 votes

Can someone help me please

Mathematics
high-school

Wlarcheveque asked

by Wlarcheveque

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1 Answer

4 votes

Answer:

8

Explanation:

$\text{The quadratic equation:}\ ax^2+bx+c=0.\\\\\text{We have}\ x^2-4x+2=0\\\\a=1,\ b=-4,\ c=2\\\\\text{Substitute to}\ b^2-4ac:\\\\b^2-4ac=(-4)^2-4(1)(2)=16-8=8$

Dmitriy Budnik answered Dec 31, 2020

by Dmitriy Budnik

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