Question

help meeeeeeeeeeeee pls​

Answer 1

(t+a)²=t²+2at+a²

(b-n)(b+n)=b²-n²

p²-2pb+b²=(p-b)²

p²+2pb+b²=(p+b)²

(5a-3)²=(5a)²-2*5a*3+3²=25a²-30a+9

(9+4b)(4b-9)=(4b-9)(4b+9)=(4b)²-9²=16b²-81

(-x²+y³)(x²+y³)=(y³-x²)(y³+x²)=(y³)²-(x²)²=y⁶-x⁴

(2m+3n)²=(2m)²+2*2m*3n+(3n)²=4m²+12mn+9n²

Answer 2

Ответ:

1

1) t² + 2at + a² 2) b² - n²

2

1) (p - b)(p - b) 2) (p + b)(p + b)

3

1)25a² - 30a + 9 2)16b² -81

3)y⁶ - x⁴ 4) 4m² + 12mn + 9n²