Study guides

☆☆

Q: Whats the formula for sum and product of roots?

Write your answer...

Submit

Still have questions?

Related questions

the sum is -b/a and the product is c/a

parallel

Um, x2+3x-5=0? This is ax2+bx+c where a=1, b=3, and c=-5. The sum of the roots is -b/a so that means the sum of the roots is -3. Also, product of the roots is c/a. That means the product of the roots is -5. -3+(-5)= -8. There you have it.

multiply by one if ur looking for the sum and divide by one if look ing for the product, easy

A quadratic equation has the form: x^2 - (sum of the roots)x + product of the roots = 0 or, x^2 - (r1 + r2)x + (r1)(r2) = 0

find the sum and product of the roots of 8×2+4×+5=0

3x squared - 12x - 24 = 0, and -b/a = sum of the roots, and c/a = product of the roots

-9

-4,3 are the roots of this equation, so for the values for which the sum of roots is 1 & product is -12

It depends on the product of sum of what.

whats the sum of 8 and 2

If the given information is the sum and the product of two numbers, then the numbers are not integers, because only 1*21 or 3*7 equals 21, and their sum is different from 27. So let's write the quadratic form of an equation given the sum and the product of roots, and solve it. The sum = 27, the product = 21 x2 - (summ of the roots)x + (product of the roots) = 0 x2 - 27x + 21 = 0; a = 1, b = -27, and c = 21 x = [-b ± √(b2 - 4ac)]/(2a) the quadratic formula x ={-(-27) ± √[(-27)2 - 4(1)(21)]/[2(1)] = [27 ± √(729 - 84)]/2 = (27 ± √645)]/2 Thus, the numbers are (27 - √645)]/2 and (27 + √645)]/2.

what two numbers have the sum of -16 and the product of -57

No - the product of numbers is the answer to a multiplication sum, while the sum of numbers is the answer to an addition sum.

A sum is an answer to an addition problem and a product is an answer to a multiplication problem

Product = 35 Sum = 12

The product is what you get when you multiply, the sum is what you get when you add.

Delete the current formula and then use the Auto Sum to put in the sum formula.

=sum()

false

It's not. Take 49 and 16 for example. The square root of the sum is the square root of 65. The sum of the square roots is 11.

A product is an answer to a multiplication sum. Since there is no sum in this question, there is no product to be obtained.

The sum equals the product.

6 and 6

718200189