Question

Plz help me!!!!!!!!!

Answer 1

Explanation:

3a-4=a(a-3)

3a-4=a²-3a

3a=a²-3a+4

0=a²-6a+4

a=(6±√[36-4(1)(4)])/2(1)

a=(6±√(36-16))/2

=(6±√20)/2

=3±(2√5)/2

=3±√5

a=3+√5

a=3-√5

Answer 2

Answer: 3 ± √5

Explanation:

`3a-4=a(a-3)\\\\3a-4=a^2-3a\qquad distributed\`