Question

Solve x2 − 7x + 12 = 0.

Answer 1

Can you factor this out?

Answer 2

x=4,3

Answer 3

What don't give out the answers!!!

Answer 4

thankyou

Answer 5

oh sorry
x2-4x-3x+12
x(x-4)-3(x-4)=0
(x-3)(x-4)=0
either x-4=0 or x-3=0
thus x=4 or 3

Answer 6

You are still essentially still giving the answer away.

Answer 7

you can factor this
x^2-4x-3x+12=0
x(x-4)-3(x-4)=0
(x-3)(x-4)=0
x-3=0
x-4=0
x=3
x=4

Answer 8

oh i get it thanks. i have another question

Answer 9

\[x^2-7x+12=0\]using formula\[-b \pm \sqrt{b^2-4ac} \over 2a\]\[7 \pm \sqrt{49-48}\over2 \]\[7 \pm 1 \over 2\]now as u know there are two distinct roots of a quadratic equation so\[\alpha={7+1\over2}={8 \over 2}=4\]\[\beta={7-1\over2}={6 \over2}=3\]

Answer 10

so x=4 & x=3.