Question

x^2+8x+12=0 quad formula. is x=-2, x=-6

Answer 1

You don't need quadratic formula as the quadratic can be normally factored. Notice that 2 and 6 multiply to +12 and add up to +8 hence the factorisation is:\[\bf (x+6)(x+2)=0 \implies x = -6,-2\]You CAN use the quadratic formula here although it's unnecessary. @dabeezy

Answer 2

but my iinstructions are to use quad formula, although we have same answers, thank you