Find the value of the following polynomial at a = - 2 and b = 3: a² - 2ab + b²

Solution:

The given polynomial is a² - 2ab + b²

We have to find the value of the polynomial ar a = -2 and b = 3.

a² = (-2)² = 4

2ab = 2(-2)(3) = 6(-2) = -12

b² = (3)² = 9

Now, a² - 2ab + b² = 4 - (-12) + 9

= 4 + 12 + 9

= 13 + 12

= 25

Therefore, a² - 2ab + b² = 25

✦ Try This: Find the value of the following polynomial at a = -3 and b = 3: a² - 2ab + b²

☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 12

NCERT Exemplar Class 7 Maths Chapter 10 Problem 66 (b)

Find the value of the following polynomial at a = - 2 and b = 3: a² - 2ab + b²

Summary:

The value of the polynomial a² - 2ab + b² at a = -2 and b = 3 is 25

☛ Related Questions:

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