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5 results found for "coefficient-comparison" in Class 10.

Question Expert Mathematics Quadratic Equations Introduction to Quadratic Equations Class 10 Level 30

यदि ((x+a)2=x-2+28x+196) है, तो (a) का मान क्या होगा?

If ((x+a)2=x-2+28x+196), what is the value of (a)?

Explanation opens after your attempt
Correct Answer

A. (14)

Step 1

Concept

((x+a)2=x-2+2ax+a-2). From (2a=28), we get (a=14).

Step 2

Why this answer is correct

The correct answer is A. (14). ((x+a)2=x-2+2ax+a-2). From (2a=28), we get (a=14).

Step 3

Exam Tip

((x+a)2=x-2+2ax+a-2) होता है। (2a=28) से (a=14) मिलता है।

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Question Expert Mathematics Quadratic Equations Introduction to Quadratic Equations Class 10 Level 29

यदि ((x+a)2=x-2-20x+100) है, तो (a) का मान क्या होगा?

If ((x+a)2=x-2-20x+100), what is the value of (a)?

Explanation opens after your attempt
Correct Answer

A. (-10)

Step 1

Concept

((x+a)2=x-2+2ax+a-2). From (2a=-20), we get (a=-10).

Step 2

Why this answer is correct

The correct answer is A. (-10). ((x+a)2=x-2+2ax+a-2). From (2a=-20), we get (a=-10).

Step 3

Exam Tip

((x+a)2=x-2+2ax+a-2) होता है। (2a=-20) से (a=-10) मिलता है।

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Question Expert Mathematics Quadratic Equations Introduction to Quadratic Equations Class 10 Level 28

यदि ((x+a)2=x-2+18x+81) है, तो (a) का मान क्या होगा?

If ((x+a)2=x-2+18x+81), what is the value of (a)?

Explanation opens after your attempt
Correct Answer

A. (9)

Step 1

Concept

((x+a)2=x-2+2ax+a-2). From (2a=18), we get (a=9).

Step 2

Why this answer is correct

The correct answer is A. (9). ((x+a)2=x-2+2ax+a-2). From (2a=18), we get (a=9).

Step 3

Exam Tip

((x+a)2=x-2+2ax+a-2) होता है। (2a=18) से (a=9) मिलता है।

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Question Hard Mathematics Quadratic Equations Introduction to Quadratic Equations Class 10 Level 30

यदि ((x+a)2=x-2-12x+36) है, तो (a) का मान क्या होगा?

If ((x+a)2=x-2-12x+36), what is the value of (a)?

Explanation opens after your attempt
Correct Answer

A. (-6)

Step 1

Concept

((x+a)2=x-2+2ax+a-2). From (2a=-12), we get (a=-6).

Step 2

Why this answer is correct

The correct answer is A. (-6). ((x+a)2=x-2+2ax+a-2). From (2a=-12), we get (a=-6).

Step 3

Exam Tip

((x+a)2=x-2+2ax+a-2) होता है। (2a=-12) से (a=-6) मिलता है।

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Question Hard Mathematics Quadratic Equations Introduction to Quadratic Equations Class 10 Level 29

यदि ((x+a)2=x-2+10x+25) है, तो (a) का मान क्या होगा?

If ((x+a)2=x-2+10x+25), what is the value of (a)?

Explanation opens after your attempt
Correct Answer

A. (5)

Step 1

Concept

((x+a)2=x-2+2ax+a-2). From (2a=10), we get (a=5).

Step 2

Why this answer is correct

The correct answer is A. (5). ((x+a)2=x-2+2ax+a-2). From (2a=10), we get (a=5).

Step 3

Exam Tip

((x+a)2=x-2+2ax+a-2) होता है। (2a=10) से (a=5) मिलता है।

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