26 August, 20:26
Find the x intercepts of f (x) = - 16x^2 + 22x + 3
26 August, 21:44
That is where the line crosses the x axis or where y=0
we gon do grouping
-16 times 3=-48
what 2 numbers multiply to get - 48 and add to get 22
-2 and 24
0 = (-16x^2-2x) + (24x+3)
0=-2x (8x+1) + 3 (8x+1)
0 = (8x+1) (-2x+3)
set eaqual to 0
x intercepts ate x=-1/8 and x=3/2
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