Question

What is the quadratic equation of -2 and 7

Answer 1

Answer:

X2 - 2x - 7

Step-by-step explanation:

Alpha + Beta = -2

Alpha * Beta = 7

So, using the quadratic eq. formula

= k (x2 + (alpha + beta)x - alpha * beta)

= k ( x2 + (-2)x - (7) )

= k ( x2 -2x -7 )

= x2-2x -7 is the equation.

HOPE THIS HELPS YOU

Answer 2

Answer:

the quadratic equation of -2 and 7 is

x²- 5x - 14= 0

Step-by-step explanation:

here,

x = -2 and x = 7  

x + 2  = 0 and x - 7 = 0

=>  (x + 2)(x - 7) = 0

=> x ( x-7) +2 (x-7) = 0

=> x² -7x +2x -14 =0

=> x² - 5x - 14 = 0

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