Question

x'2-7x+12
RESOLVER MEDIANTE LA FORMA ax'2+bx+c

Answer 1

a=1 b=-7 c=12

Fórmula general:
x1=[-b+raiz(b^2-4ac)]/2a
= [7+ raiz(49-4(1)(12))]/2
=(7+raiz(1))/2=8/2=4
x2=[-b-raiz(b^2-4ac)]/2a
= [7- raiz(49-4(1)(12))]/2
=(7-raiz(1))/2=6/2=3