Question

Zapisz w postaci iloczynu

a) 1/2 * 4(a+b) - 1/2 h (a+b)

b) z(x-y) - (y-x)

Answer 1

A)
½ * 4(a + b) - ½ h (a + b) = ½(a+b)(4 - h)

b)
z(x - y) - (y - x) = z(x - y) + (x - y) = (x - y)(z + 1)