Question

hello tell the answer plz​

Answer 1

Answer:

1. (x+3)(x+3) = x²+3x+3x+9 = x²+6x+9
2. (2y+5)(2y+5) = 4y²+20y+10y+25 = 4y²+30y+25
3. (2a-7)(2a-7) = 4a²-14a-14a+49 = 4a²-28a+49
4. (3a-12)(3a-12) = 9a²-36a-36a+144 = 9a²-72a+144
5. (1.1m-0.4)(1.1m-0.4) = 1.21m²-0.44m-0.44m+0.16 = 1.21m²-0.88m+0.16
6. (a²+b²)(-a²+b²) = -a⁴+a²b²-a²b²+b⁴ = -a⁴+b⁴
7. (6x-7)(6x+7) = 36x²+42x-42x-49 = 36x²-49
8. (-a+c)(-a+c) = a²-ac-ac+c² = a²-2ac+c²
9. (x²+3y⁴)(x²+3y⁴) = (x⁴+3x²y⁴+3x²y⁴+3y⁸) = (x⁴+6x²y⁴+3y⁸)
10. (7a-9b)(7a-9b) = 49a²-63ab-63ab+81b² = 49a²-96ab+81b²

I hope , it's helpful for you......