Question

A^2+4ab+4b^2=? a^2+8a+16=? 16a^2+24ab+9b^2=? 9x^2+42xy+49y^2=? 9m^2-6mn+n^2=? 99^2=? 67^2=? 48^2=? 56^2=? 78^2=? 5^2+2*5*3+3^2=? 7^2-2*7*3+3^2=? 4^2+2*4*6+6=? 3^2-48+8^2=? 6^2+108+9^2=? Плиз спасите меня !!!

Answer 1

===============================================

Answer 2

1. ＝ (a + 2b)²

2. ＝ (a + 4)²

3. ＝ (4a + 3b)²

4. ＝ (3x + 7y)²

5. ＝ (3m - n)²

6. ＝ (100 - 1)² ＝100² - 2*100*1 + 1 ＝ 10000 - 200 + 1 ＝ 9801

7. ＝ (70-3)² ＝ 70² - 2*70*3 + 3² ＝ 4900 - 420 + 9 ＝ 4489

8. ＝ (50 - 2)² ＝ 50² - 2*50*2 + 2² ＝ 2500 - 200 + 4 ＝2304

9. ＝ (60 - 4)² ＝ 60² - 2*60*4 + 4² ＝ 3600 - 480 + 16 ＝3120 + 16 ＝ 3136

10. ＝ (80 - 2)² ＝ 80² - 2*80*2 + 2² ＝ 6400 - 320 + 4 ＝ 6084

11. ＝ (5 + 3)² ＝ 8² ＝ 64

12. ＝ (7-3)² ＝ 4² ＝ 16

13. ＝ (4 + 6)² ＝ 10² ＝ 100

14. ＝ (3 - 8)² ＝ (-4)² ＝ 4² ＝ 16

15. ＝ (6 + 9)² ＝15² ＝ 225

Answer 3

Sure, I can help you with these calculations. Let's solve each of them step by step:

1. $a^2 + 4ab + 4b^2 = (a + 2b)^2$

2. $a^2 + 8a + 16 = (a + 4)^2$

3. $16a^2 + 24ab + 9b^2 = (4a + 3b)^2$

4. $9x^2 + 42xy + 49y^2 = (3x + 7y)^2$

5. $9m^2 - 6mn + n^2 = (3m - n)^2$

6. $99^2 = 9801$

7. $67^2 = 4489$

8. $48^2 = 2304$

9. $56^2 = 3136$

10. $78^2 = 6084$

11. $5^2 + 2 \cdot 5 \cdot 3 + 3^2 = 25 + 30 + 9 = 64$

12. $7^2 - 2 \cdot 7 \cdot 3 + 3^2 = 49 - 42 + 9 = 16$

13. $4^2 + 2 \cdot 4 \cdot 6 + 6 = 16 + 48 + 6 = 70$

14. $3^2 - 48 + 8^2 = 9 - 48 + 64 = 25$

15. $6^2 + 108 + 9^2 = 36 + 108 + 81 = 225$

I hope this helps! If you have any more questions or need further assistance, please feel free to ask.