What is the quadratic formula of #0=10x^2 + 9x-1#?

2 Answers
Apr 25, 2018

Answer:

#(-9+-sqrt(81-4(10)(-1)))/20#

Explanation:

The equation given is in #ax^2+bx+c# form. The general form for the quadratic formula of an unfactorable equation is:
#(-b+-sqrt(b^2-4(a)(c)))/(2a)#
just take the terms and plug them in, you should get the correct answer.

Apr 25, 2018

Answer:

#x=(-9+-sqrt(9^2-4(10)(-1)))/(2(10))#

Explanation:

The Quadratic Formula is #x=(-b+-sqrt(b^2-4ac))/(2a)#

The equation #10x^2+9x-1# is in standard form, which is #ax^2+bx+c#. We can replace the letters in the quadratic formula with the letters from the equation.

#x=(-9+-sqrt(9^2-4(10)(-1)))/(2(10))#