Module Seventeen - Lazarski
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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x^2+7x+4=0 Use the quadratic formula to solve. | x = -7 plus/minus the square root of 33, all over 2.
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(x+5)x-1=2 Use the quadratic formula to solve. | a = -2 plus/minus the square root of 11.
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2/5y^2+1/5y+3/5=0 Use the quadratic formula to solve. | x = -1 plus/minus i the square root of 23, all over 4.
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How many solutions does a positive answer to b^2-4ac have? | Two real solutions.
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How many solutions does the answer 0 to b^2-4ac have? | One real solution.
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How many solutions does a negative answer to b^2-4ac have? | Two complex, but not real, solutions.
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Solve 6=4x-5x^2 and tell how many solutions it has. | -104 with two complex, but not real, solutions.
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A=X, B=X+8, C=36ft Solve for x. | 21 and 29
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How is the Pythagorean Theorum written? | a^2+b^2=c^2
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(p+2)^2=9(p+2)-20 Solve for p+2. | 2 and 3
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x^2/3-3x^1/3-10=0 Solve for x^1/3 | 125 and -8
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(x+1)(x-5)=4 Solve for x. | x=2 plus/minus the square root of 13.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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