Question

Desenvolva Os ProdutoNotáveis

a) (a+5)²

b) (1+m)²

c) (X -4 )²

d) (4x + 3y)²

e) (a²+7)²

f) (a-4b)²

g) (3a- 3b)²

h) ( x+3). (x-3)​

Answer 1

a) (a+5)²= a²+2.a.5+5²=a²+10a+25

b) (1+m)²=1²+2.1.m+m²=1+2m+m²

c) (X -4 )²=x²-2.x.(-4)+(-4)²=x²+8x+16

d) (4x + 3y)²=4x²+2.4x.3y+3y²=16x²+24xy+9y²

e) (a²+7)²=(a²)²+2.a².7+7²=a⁴+14a²+49

f) (a-4b)²=a²-2.a.(4b)+4b²=a²-8ab+16b

g) (3a- 3b)²=3a²-2.3a.(-3b)+(-3b)²=9a²+24ab+9b

h) ( x+3). (x-3)=x²-3x+3x-9=x²-9