Question

is 0.2 root of the quadratic equation x squared minus 0.4 is equal to zero justify

Answer 1

PLZZ check the attachment for answer... Hope it is help full

Answer 2

0.2 is not a root of the quadratic equation x² - 0.4 = 0

Given :

The quadratic equation x² - 0.4 = 0

To find :

To check is 0.2 root of the quadratic equation x² - 0.4 = 0

Solution :

Solution :Step 1 of 2 :

Write down the given Quadratic equation

The given Quadratic equation is

x² - 0.4 = 0

Step 2 of 2 :

To check is 0.2 root of the quadratic equation x² - 0.4 = 0

Put x = 0.2 in both sides we get

(0.2)² - 0.4 = 0

⇒ 0.04 - 0.4 = 0

⇒ - 0.36 = 0

Which is absurd

Hence 0.2 is not a root of the quadratic equation x² - 0.4 = 0

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