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2 years ago

Write a polynomial equation with integer coefficients that has the given roots. x = -8, x = 7

Mathematics

1 answer:

alukav5142 [94]2 years ago

6 0

Answer:

x²+x-56

Step-by-step explanation:

If x=-8 and x=7 are the roots then x+8 and x-7 are the factors. Find the product of the factors to obtain the polynomial.

(x+8)(x-7)

x²-7x+8x-56

x²+x-56

Similarly,we could use Vieta's formula

x²-(sum of roots)x+(product of roots)

x²-(-8+7)x+(-8×7)

x²-(-1)x+(-56)

x²+x-56

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2 years ago

Can someone explain this to me? Please solve step by step. I don't know how to do this.

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Given,

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3 years ago

An experiment consists of choosing objects without regards to order. Determine the size of the sample space when you choose the

sdas [7]

Answer:

$n= 75, 582$

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$n = 253$

Step-by-step explanation:

Generally the size of the sample sample space is mathematically represented as

$n = \left N } \atop {}} \right. C_r$

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So for a, where N = 19 and r = 8

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$= \frac{19 *18 *17 *16 *15 *14 *13 *12 *11! }{11 ! \ 8!}$

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3 years ago

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