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all over 2a equation. Okay so here we go. So plugging those values into our quadratic formula we have x equals 2 plus or minus the square root of 4 minus 4 times 1 times 2 all over 2a which in this case is 2.
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X times b over 2a is plus b over 2ax. The calculator works for both numbers and expressions containing variables. X is equal to plus or minus this giant ugly square root.
Its important that when youre setting up your quadratic formula that your constant c is on the left side of the equation symbol and you have a.
You have b over 2a times x which is another b over 2ax and then you have b over 2a times b over 2a that is plus b over 2a squared. A 1 b 2 and c 15. That and this are the same thing because these two middle terms b over 2a plus b over 2a thats the same thing as 2b over 2ax which is the same thing as b over ax. So this term needs a 4A over 4A.
