Question

Solve quadratic equations using formula
y²-2y=-3=0​

Answer 1

Answer:

Step 1 :Trying to factor by splitting the middle term. 1.1 Factoring y2-2y+3. The first term is, y2 its coefficient is 1 . The middle term is, -2y its coefficient is -2 . ...

Step 2 : Parabola, Finding the Vertex: 2.1 Find the Vertex of t = y2-2y+3.

Answer 2

Answer:

Solution: y=1+√5;y=1-√5

Step-by-step explanation:

y²-2y-3=0

a=1, b=-2,c=-3

b²-4ac

=-2²-4×-2×-3

=4-(-16)

=4+16

=20

Using quadratic formula

y={-b±√(b²-4ac)}/2a

y={-(-2)±√20}/2×1

y=(2±√20)/2

y=(2+√20)/2 ; y=(2-√20)/2

y=(2+2√5)/2 ; y=(2-2√5)/2

y=2(1+√5)/2 ; y=2(1-√5)/2

y=1+√5 ; y=1-√5