3 years ago

(ii) Use the quadratic formula to solve 4x2 +11x-300 = 0.

1 answer:

6 0

X=-b+-sqrt (b^2-4ac)/2a
x=-11+-sqrt (11^2-4(8)(-300)/16
x=-11+-sqrt (121+9600)/16
x=-11+-sqrt (9721)/16
x=-11+-98.6/16
x=5.48 or x=-6.85

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