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I need help solving by using the quadratic formula
3x² - x = 3
Get 0 on the right by adding -3 to both sides:
3x² - x - 3 = 0
Use the quadratic formula, which gives
the solution to
ax² + bx + c = 0
The quadratic formula is
______
-b ± Öb²-4ac
x = —————————————
2a
Compare
3x² - x - 3 = 0
to
ax² + bx + c = 0
and we see that: a = 3; b = -1; c = -3
______________
-(-1) ± Ö(-1)²-4(3)(-3)
x = ————————————————————————
2(3)
____
1 ± Ö1+36
x = ————————————
6
__
1 ± Ö37
x = ———————————
6
Edwin