Write the quadratic equation in general form. What is the value of b2 - 4ac? 1 = 2x2 + 5x?

asked Nov 16, 2018 28.6k views

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Write the quadratic equation in general form. What is the value of b2 - 4ac?

1 = 2x2 + 5x?

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5 votes

the answer is 33......

Weles answered Nov 18, 2018

by Weles

7.5k points

6 votes

formula

$1=2x^2+5x \\\\ -2x^2-5x+1=0 \ |*(-1) \\\\ 2x^2+5x-1=0\\\\ a=2, \ b=5 , \ c=-1 \\\\ b^2-4ac=5^2-4*2*(-1)=25+8=33$

Answer:
33

Dr TJ answered Nov 19, 2018

by Dr TJ

9.1k points

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