Explanation

(x - 3)² = (x - 3)(x - 3)  

Use formula: (a - b)² = a² - 2ab + b²  

Here a = x, b = 3  

So: x² - 2(x)(3) + 3² = x² - 6x + 9  

Rearranged: x² + 9 - 6x

Last verified on 16-06-2026

Explanation

To convert a fraction to %, multiply by 100

7/20 × 100 = 7 × 5 = 35%.

Last verified on 16-06-2026

Explanation

( ) × 3 × 7 = 21  

( ) × 21 = 21  

So ( ) = 21 ÷ 21 = 1

Last verified on 16-06-2026

Explanation

Given: x = 0, y = 4, z = 2  

Expression: 2x + 4y - z  

Put values: 2(0) + 4(4) - 2 = 0 + 16 - 2 = 14

Last verified on 16-06-2026

Explanation

• An irrational number cannot be expressed as a simple fraction.
• √2 is irrational because it cannot be expressed as a fraction of two integers.

Last verified on 16-06-2026

Explanation

Explanation

Remove brackets and combine like terms  

(x - y + 2) + (2x + y) - (x + 3) = x - y + 2 + 2x + y - x - 3  

Group x terms: x + 2x - x = 2x  

Group y terms: -y + y = 0  

Group numbers: 2 - 3 = -1  

Add all = 2x + 0 - 1 = 2x - 1

Last verified on 16-06-2026

Explanation

• Odd numbers are integers that are not divisible by 2.
• They can be expressed in the form 2n + 1, where n is any integer.
• This formula always produces odd values like 1, 3, 5, 7, etc.

Last verified on 16-06-2026

Explanation

• Jaundice is a condition characterized by yellowing of the skin and eyes.
• It is caused by excess bilirubin due to liver dysfunction or disease.

Last verified on 01-04-2026

Explanation

• The Arabian Sea is part of the Indian Ocean.
• It is located in the northwestern part of the Indian Ocean.
• It lies between the Indian Peninsula and Arabian Peninsula.
• It covers an area of about 3.86 million km².

Additional information:

• Location: Between India, Pakistan, Arabian Peninsula, and Horn of Africa
• It connects with the Persian Gulf through the Gulf of Oman.

Last verified on 16-06-2026