Question

7. Factorise: a?- bc - ac + ab​

Answer 1

✨ Answer✨

${a}^{2} + bc + ab + ac \\ rearranging \: the \: terms \: we \: get \: \\ = {a}^{2} + ab + ac + bc \\ = (a \times a + a \times b) + (a \times c + b \times c) \\ tke \: a \: and \: c \: common \: in \: first \: second \: brackets \\ respectively \: we \: get \: \\ = a(a + b) + c(a + b) \\ again \: take \: (a + b) \\ common \: we \: get \: \\ = (a + b)(a + c) \\ ok \: bye \: \\ give \: me \: some \: multiple \: thanks \: please \:$