Question

preciso da resposta até as 4​

Answer 1

Resposta:

Explicação passo-a-passo:

a)(x+y)*(x-y)

x2-xy+xy-y2

x2-y2

b)(m+1)*(m-1)

m2-1m+1m-1

m2-1

c)(a+3)*(a-3)

a2+3a-3a-9

a2-9

d) (5+b)*(5-b)

25-5b+5b-b2

25-b2

e) (10+y)*(10-y)

100-10y+10y-y2

f) (x2+y2)*(x2-y2)

x4-x2y2+x2y2-y4

x4-y4