Question

He value of x²-8x+50 can't be less than?

Answer 1

Answer:

34

Step-by-step explanation:

value is least for x=4

x²-8x+50

= 4^2 - 8*4 +50

= 16 - 32 +50

= 34

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Answer 2

value of x²-8x+50 can't be less than 34

Step-by-step explanation:

given quadratic equation :

x²-8x+50

we have to find the minimum value of the  quadratic equation

therefore ,

using the completing square method

we have

f(x) = x²-8x+50

now,

(x²-8x) +50

(x² -8x+4²-4²) +50

(x-4)² -4²+50

(x-4)² +34

therefore ,

The minimum of (x²-8x+50) = 34 at x = 4

hence ,  value of x²-8x+50 can't be less than 34

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