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makvit [3.9K]
3 years ago
5

Consider this quadratic expression.

Mathematics
1 answer:
elena55 [62]3 years ago
3 0

Answer:

<h3>c = 25</h3>

Step-by-step explanation:

Given this quadratic expression.

x² – 10x + c = 0

We are to find the value c that will make the expression a perfect square'

Using the completing the square method

Add the square of the half of coefficient of x

Coefficient of x = -10

Half of -10 = 1/2(-10) = -5

Square of -5 = (-5)^2 = 25

Hence the value of c to complete the expression is 25

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