Question

Spot the errors in each of the following statements and correct them: (a) At x = 2, x2 + 5x - 14 = 0 becomes 72 +52 - 14 = 0. (b) 7 is the zero of the equation x2 - 8x + 7 = 0. (C) x = 0 is the zero of the polynomial x2 + 5x - 6.
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Answer 1

Spot the errors in each of the following statements and correct them: (a) At x = 2, x2 + 5x - 14 = 0 becomes 72 +52 - 14 = 0. (b) 7 is the zero of the equation x2 - 8x + 7 = 0. (C) x = 0 is the zero of the polynomial x2 + 5x - 6.

Answer 2

Answer:

Answer

1)x(3x+2)=3x

2

+2

Here, the product of x with 3x+2 is not correct.

The correct product will be :

x(3x+2)=3x

2

+2x

2)5y+2y+y−7y=0

Here, the right hand side will not be zero.

The correct mathematical statement will be :

5y+2y+y−7y=y

hope it helps you✌