Question

What are the zeros of the function? -x^2 - 2x + 3

Answer 1

1

Answer 2

sum of coefficennts =0 so 1 is definitely a root

Answer 3

Zeros of a function are the values of the variable(s) that bring the function to 0.

\( \color{Black}{\Rightarrow 0 = -x^2 - 2x + 3}\)

Here equate it with zero and then find the values of \(x\).

Answer 4

you can write this as
x^2 + 2x - 3 = 0
this can be factored

Answer 5

and solved

Answer 6

1 and -3 if i am not wrong :)

Answer 7

yep u r right

Answer 8

yep - right

Answer 9

thank you :)

Answer 10

yw

Answer 11

And thus, it's a victory of direct answering

Answer 12

:(

Answer 13

u can use a formula here too
x={-b+-(b*b - 4ac)^1/2}/2a if u can relate ;)

Answer 14

@abhijitjain1995 i dont see any reason y u need to use that

Answer 15

@ParthKohli i am against that :)

Answer 16

its easier to factor

Answer 17

yep @cwrw238

Answer 18

@AravindG yay!

Answer 19

i factored it manually . Any quad eqn is of the form -> ax*x + bx +c = 0 . U can have many approaches to a single problem people.

Answer 20

i should add to it that some approaches gain momentum than others in specific qn and this was a beautiful example :)

Answer 21

thats right