Question

x^2+2x-3=0

Answer 1

Find two numbers that multiply to be -3 and add to be 2

Answer 2

Okay now how do I that

Answer 3

well think what two numbers multiply to give you -3?

Answer 4

i'll give you the answer for this so you know what i mean

because there is x^2 there will be two x's one in each bracket
with the one of the two products

the two numbers that multiply to give you -3 are

+3 * -1 = -3

and when you add them

-1 + 3 = 2 or +2

and we know we need two x's to give us x^2

so the two brackets will now looks like

(x + 3) (x - 1) = 0

and we now know what the two values for x are

because you rearrange the formula by opening one of the brackets

so the first bracket will mean x is

x = -3

and if you open the second bracket it will mean

x = 1

those are the two answers

remember to click good answer

and also you can use quadratic formula to work it out also