Solve x^2 + x=12 by factorising
Start off with:x2+x=12Subtract 12 from both sides:x2+x-12=0Factorise:(x-3)(x+4)=0Solution is therefore:x=3 or x=-4
DB
Start off with:x2+x=12Subtract 12 from both sides:x2+x-12=0Factorise:(x-3)(x+4)=0Solution is therefore:x=3 or x=-4
