Question

Solve x² + 7x + 2 = 0

Answer 1

you mean x² + 7x + 12 = 0 ????????

Answer 2

Use the quadratic equation:
a=1
b=7
c=2

\[-7 \pm \sqrt{7^{2}-4(1)(2)}/(2(1))=-7 \pm \sqrt{49-8}/2=-7 \pm \sqrt{41}/2\]

Answer 3

Here, a = 1, b = 7 and c = 12

As:
\[D = b^2 - 4ac\]

So, from here can you find D???

Answer 4

how do you know it is a 12?

Answer 5

Sorry, Little mistake..
c = 2

Answer 6

i just thought
is it 12 ???

Answer 7

yes or no ???

Answer 8

no