Question
a) x^2-7x+6=0 b) a^2+3a-18=0 C) 2y^2-6y-20=0 d) 4y^2+8y+3=0 e) 7x^2-21x=0 f) a^2-2a-9=0
Solution
4.4
(245 Votos)
Pietra
Veterano · Tutor por 11 anos
Resposta
a)
Factor the quadratic equation:
Set each factor to zero and solve for x:
b)
Factor the quadratic equation:
Set each factor to zero and solve for a:
c)
Factor the quadratic equation:
Set each factor to zero and solve for y:
d)
Factor the quadratic equation:
Set each factor to zero and solve for y:
e)
Factor out x:
Set each factor to zero and solve for x:
f)
Factor the quadratic equation:
Set each factor to zero and solve for a: