Find the solution of each of the ff. quadratic equations by completing the square.
PLEASE answer the questions that follow:
1.x²-2x=3
2.s²+4s-21=0
3.t²+10t+9=0
4.x²+14x=32
5.r²-10r=-17
6.4x²-32x=-28
7.x²-5x-6=0
8.m²+7m-51/4=0
9.r²+4r=-1
10.w²+6w-11=0

1
What is the answer in number 3?

Answers

2016-07-10T11:08:43+08:00
The answer is

1.) x²-2x-3=0
a= 1 b= -2 c= -3
2.) s²+4s-21=0
a= 1 b= 4 c= -21
3.) t²+10t+9=0
a= 1 b= 4 c= 9
4.) x²+14x-32
a= 1 b= 14 c= -32
5.) r²-10r+17=0
a= 1 b= -10 c= 17
6.) 4x²-32x+28=0
a= 4 b= -32 c= 28
7.) x²-5x-6=0
a= 1 b= -5 c= -6
8.)m²+7m-51/4=0
a= 1 b= 7 c= -51/4
9.)r²+4r+1=0
a= 1 b= 4 c= 1
10.) w²+6w-11=0
a= 1 b= 6 c= -11
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