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Earn +20 ptsQ: What is the discriminant of 2x2 plus 5x-8?
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What is the discriminant of 2x2 plus 23x plus 63 equals 0?
The discriminant is 25.
What is the value of c if the discriminant of negative 2x squared minus 3x plus c is 41 and what is the standard form of the expression i over 2 plus i?
Presumably you mean: -2x2-3x+41 If so then the discriminant is: (-3)2-4*-2*41 = 337 The expession is: i/2+i
What is the degree of the polynomial 2x7 plus 4 - 3x3 plus 5x8 - 4x?
I'm going to assume the polynomial in question is 2x7+(3-2x3)+(5x8-4x) Expanding out the polynomial: 2x7+3-2x3+5x8-4x Order the terms by powers of x: 5x8+2x7-2x3-4x+3 Since 8 is the highest power of x, the degree of the polynomial is 8.
Which statement best explain why there is no real solution to the quadratic equation 2x2 plus x plus 7 equals 0?
The discriminant says; b^2 - 4ac 1^2 - 4(2)(7) = 1 - 56 < 1 So, less than 1 and no real roots
What is the discriminant of x2 plus 7x plus 2 equals 0?
The discriminant is b2 - 4ac. In this case, a = 1, b = 7, and c = 2. Just replace and calculate.
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