Question

Solve using formula x² -7x+12 =0

Answer 1

Answer:

wait i will attach an attachment

Step-by-step explanation:

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Answer 2

Answer:

$\boxed{\sf x = 4 \: or \: 3}$

Step-by-step explanation:

$\sf Solve \: for \: x \: over \: the \: real \: numbers: \\ \sf \implies {x}^{2} - 7x + 12 = 0 \\ \\ \sf Conver \: the \: left \: hand \: side \: factors \: into \\ \sf a \: product \: with \: two \: terms: \\ \sf \implies {x}^{2} - (3 + 4)x + 12 = 0 \\ \\ \sf \implies {x}^{2} - 3x - 4x + 12 = 0 \\ \\ \sf \implies x(x - 3) - 4(x - 3) = 0 \\ \\ \sf \implies (x - 3)(x - 4) = 0 \\ \\ \sf Split \: into \: two \: equations: \\ \sf \implies (x - 4) = 0 \: \: \: \: or \: \: \: \: (x -3) = 0 \\ \\ \sf Solve \: for \: x \: by \: adding \: 4 \: and \: 3 \: respectively \\ \sf on \: both \: sides: \\ \sf \implies x = 4 \: \: \: \: or \: \: \: \: x = 3$