Question

Find the zeroes of x2 – 7.​

Answer 1

Answer:

5

Step-by-step explanation:

x2-7

×=5

ANS 5

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akabgauaoaksbdvdial

nabsgusiwowjeyuwodhsvia

nsbshisowpwodhdhrhiw

jsbskosndveikwlq

Answer 2

Step-by-step explanation:

• x² - 7 = 0
• x² = 7
• x = √7
• $\sf\fbox\green{ x \: = \: +√7 \: or \: -√7 }$

Verification :-

" Substitute "x" value in above given polynomial "

❤ If x = +√7

• x² - 7
• (+√7)² - 7
• 7 - 7
• 0
• $\sf\fbox\pink{ x² \: - \: 7 \: = \: 0 }$

❤ If x = -√7

• x² - 7
• (-√7) ² - 7
• 7 - 7
• 0
• $\sf\fbox\purple{ x² \: - \: 7 \: = \: 0 }$