#### Term 2 - Algebra Two Marks Questions

9th Standard

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Maths

Time : 00:45:00 Hrs
Total Marks : 20
10 x 2 = 20
1. Expand the following using identities: (5x+4y)(5x-4y)

2. Expand (a-b+c)2

3. Expand (2x+3y+4z)2

4. Find the product of (2x+3y+4z)(4x2+9y2+16z2-6xy-12yz-8zx)

5. Evaluate 103-153+53

6. Expand the following: (2x+3y+4z)2

7. Find the expansion of the following: (5 + 4m)(4m + 4)(−5 + 4m)

8. Expand: (2a+3b)3

9. If $a+\frac { 1 }{ a }$=6, then find the value of ${ a }^{ 3 }+\frac { 1 }{ { a }^{ 3 } }$ .

10. If ${ x }^{ 2 }+\frac { 1 }{ { x }^{ 2 } }$=23, then find the value of $x+\frac { 1 }{ x }$ and ${ x }^{ 3 }+\frac { 1 }{ { x }^{ 3 } }$ .