What number must you add to complete the square x^2+2x=13
1 answer:
You must halve the linear coefficient and then square it. In this case:
(2/2)^2=1 so you must add 1 to both sides of the equation...
x^2+2x+1=14 now the left side is a perfect square...
(x+1)^2=14
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Y = x^2 + 11x + 24 = (x + 8)(x + 3)
6:15
2*3=6
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That’s your reason