Answer:
A.
1. x^2-8x-9=0
a= 1 , b= -8 and c= -9
2. x^2+6x+9=0
a= 1 , b= 6 and c= 9
3. x^2-3x-18=0
a= 1 , b= -3 and c= -18
B.
If the area of a room of HOPE 1 for a Covid-19 patient is 120 square meters and the length is 1 less than twice the width. Find the length and the width of the room.
(l)(w)=120
(2w-w)(w)=0
2w^2-w=120
Quadratic Equation: 2w^2-w-120=0
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Answers & Comments
Answer:
A.
1. x^2-8x-9=0
a= 1 , b= -8 and c= -9
2. x^2+6x+9=0
a= 1 , b= 6 and c= 9
3. x^2-3x-18=0
a= 1 , b= -3 and c= -18
B.
If the area of a room of HOPE 1 for a Covid-19 patient is 120 square meters and the length is 1 less than twice the width. Find the length and the width of the room.
(l)(w)=120
(2w-w)(w)=0
2w^2-w=120
Quadratic Equation: 2w^2-w-120=0