Q.1 Factor the following using identities wherever necessary1) x to th

1.	Q.1 Factor the following using identities wherever necessary1) x to the power 2- 93) x to the power 2 - 8x + 164) 2x to the power 2 -14x5) 20a square b - 25a3b6) a square + ac + ab + bc7) 15xy – 6x + 5y – 28) 3x + 9y9) 3xyz + 2710) 2abc + 7ac + 9bc
Answer» Step-by-step explanation: 1. ${x}^{<klux>2</klux>} - 9 \\ = {x}^{2} - {3}^{2} \\ = (x + 3)(x - 3)$ 2. ${x}^{2} - 8x + 16 \\ = {x}^{2} - 2 \times x \times 4 + {4}^{2} \\ = {(x - 4)}^{2} \\ = (x - 4)(x - 4)$ 3. ${(2x)}^{2} - 14x \\ = 4 {x}^{2} - 14x \\ = 2x(2x - 7)$ 4. $20 {a}^{2} b - 25 {a}^{3} b \\ = 5 {a}^{2} b(4 - 5a)$ 6. ${a}^{2} + ac + ab + bc \\ = a(a + c) + b(a + c) \\ = (a + c)(a + b)$ 7. $15xy - 6x + 5y - 2 \\ =$ 8. $3x + 9y \\ = 3(x + 3y)$ 9. $3xyz + 27 \\ = 3(xyz + 9)$ 10. $2abc + 7ac + 9bc \\ = 9bc + 9abc - 7abc + 7ac \\ = 9bc(1 + a) - 7ac(b - 1)$ something went WRONG in question NUMBER 7 and 10. and QUESTIONS number 2 is missing.