ahseul30
ahseul30
08-07-2021
Mathematics
contestada
x²-7x+5 in the form (x-a)²-b
Respuesta :
VirαtKσhli
VirαtKσhli
08-07-2021
Answer:
( x - 3.5)² - 29/4
Step-by-step explanation:
Given
:
-
x² - 7x + 5
Writing
in
(
x
-
a)
²
-
b
form
,
x² - 7x + 5
x² - 7 * 2/2 * x + 5
x² - (7/2) * 2 * x + 5
x² - (7/2)*2*x +(7/2)²-(7/2)²+5
( x - 7/2)² + 5 - 49/4
( x - 7/2)² + ( 20-49)/4
( x - 3.5)² - 29/4
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