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Coordinate Geometry
Question
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Evaluate the following products without multiplying directly:

104 × 96.

Answer

104 × 96
104 × 96 = (100 + 4) × (100 - 4)
= (100)2 - (4)2 | Using Identity III
= 10000 - 16 = 9984.

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Some More Questions From Coordinate Geometry Chapter

Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer.

4x2 - 3x + 7

Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer.

x10+ y3 + t50

Write the coefficients of x2 in each of the following:

2 + x2 + x

Write the coefficients of x2 in each of the following:
2 - x2 + x3