Question

Hey can anyone pls answer these math problems!!

Answer 1

1={5 and 3} 2={0} 3={0.209 and 4.791} 4={-3 and 4} 5={1 and 9} 6={-4.303 and -0.697}

Explanation:

Your probably confused on what a, b, and c means.

The problems are written like this.

`ax^2+bx+c=0`

That formula finds the zeros.

For example 1:

`x^2-8x+15=0\\ax^2-bx-c\\a=1\\b=-8\\c=15`

Then use the formula

`x=(-b+-√(b^2-4ac) )/(2a) \\\\x=(-(-8)+-√(-8^2-4(1)(15)) )/(2) \\x=(8+-√(64-60) )/(2) \\\\x=(8+-2)/(2)\\`

If plus then 5, if minus then 3

CHECK:

`x^2-8x+15=0\\5^2-8(5)+15=0\\25-40+15=0\\0=0\\3^2-8(3)+15=0\\9-24+15=0\\0=0`

Hope this helps you understand how to do this by yourself. Now to do the rest ;-;