Question

Factorise; (x raised to power 2 -7+12)whole square solve iwill keep you in brain list

Answer 1

I think this will help you..

Answer 2

${x}^{2} - 7x + 12$
${x}^{2} - 4x - 3x + 12$
$x(x - 4) - 3(x - 4)$
$(x - 4)(x - 3)$
$so \: x = 4 \: and \: 3$