Question

me ajudem por favor :C ♡​

Answer 1

2. a) (a+5)²=

(a+5).(a+5)=

a²+10a+25

b) (x+3)²=

(x+3).(x+3)=

x²+6x+9

c) (y+10)²=

(y+10).(y+10)=

y²+20y+100

d) (x+7).(x+7)=

x²+14x+49

e) (a+4).(a+4)=

a²+8a+16

f) (x+1).(x+1)=

x²+2x+1

3. a) (a-3)²=

(a-3).(a-3)=

a²-6a+9

b) (x-2)²=

(x-2).(x-2)=

x²-4x+4

c) (2x-5)²=

(2x-5).(2x-5)=

4x²-20x+25

d) (5-y)²=

(5-y).(5-y)=

25-10y+y²

e) (2a-b)²=

(2a-b).(2a-b)=

4a²- 4ab +b²

f) (3-2x)²=

(3-2x).(3-2x)=

9-12x+4x²

espero ter ajudado ^^