Factorise:25a2 - 4b2 + 28bc - 49c2
Factorise the expressions.ax2 + bx
Factorise the expressions.7p2 + 21q2
Factorise the expressions.2x3 + 2xy2 + 2xz2
Factorise the expressions.am2 + bm2 + bn2 + an2
Factorise the expressions.(lm + l) + m + 1
We have                    lm + l = l(m + 1)
∴ (lm + l) + (m + 1) = l(m + 1) + 1 (m + 1)                              = (m + 1) [l +1]
Factorise the expressions.y(y + z) + 9(y + z)
Factorise the expressions.5y2 - 20y - 8z + 2yz
Factorise the expressions.10ab + 4a + 5b + 2
Factorise the expressions.6xy - 4y + 6 - 9x