Multiply (a + b) dan (a-b)?

Multiply (a + b) dan (a-b)?
Anonim

# (a + b) (a-b) #

# => a (a-b) + b (a-b) #

# => a ^ 2-ab + ab-b ^ 2 #

# => a ^ 2-b ^ 2 #

# (a + b) (a-b) #

# = a (a-b) + b (a-b) #

# = a ^ 2-ab + ab-b ^ 2 #

# = a ^ 2-b ^ 2 #

atau

# (a + b) (a-b) = a ^ 2-b ^ 2 #

MENGGUNAKAN IDENTITI ALGEBRA, ''# (a + b) (a-b) = a ^ 2-b ^ 2 #''