3 years ago

Complete the square: x^2-8x+21=6 Please show work

Mathematics

2 answers:

laila [671]3 years ago

7 0

........................

mina [271]3 years ago

5 0

Answer:

x=5 and 3

Step-by-step explanation:

x^2-8x+21=6

x^2-8x+21+16=6+16

(x-4)^2=1

(x-4)=±1, x=5 and 3

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3 years ago

Suppose the function of h is defined, for all real numbers as follows: (f) x = -3 if x is <) 3 if x is =0 -2 if x is > 0

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Answer:

See explanation

Step-by-step explanation:

The question is not properly presented; I will answer this with the following similar question.

$h(x) = -\frac{1}{3}x^2 + 4$ --- $x \ne 2$

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This implies that: x = -5

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So, we make use of:

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Use the above explanation to answer your question

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3 years ago