Question

a) 40 a + 70 b=

b) 15xy – 21x +10y – 14x=

c) 16 x² - 49 y² =

d) 1 + 2m + m² =​

Answer 1

a) 10(4a + 7b)

b) 15xy - 35x - 10y

c) (4x + 7y)(4x - 7y)

d) (m + 1)²