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To fix this you put the entire denominator inside parentheses just as you did with the entire numerator. To fix this you put the entire numerator inside parentheses like thisīy order of operations (24)/2(3) = 12(3) = 36.īut the quadratic formula requires that you divide by 2a, not divide by 2 and then multiply by a. In the quadratic formula, both -b and √((b) 2 – 4ac)) are in the numerator of the same fraction and you need tell the calculator that by grouping them together as shown on the left side above. (Alternatively, you could just not type in the negative sign at all there since you know it will square away.) Thus you need to type in (b) 2 rather than b 2. To fix this you need to type in (-3) 2 so you get ▲t= 8.388+SQRT(-8.388^2-4(4.9)(-1.8)/2(4.9)īut the quadratic formula requires that you square all of b including its negative sign.
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