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anonymous
 one year ago
Solve x2 − 7x + 12 = 0.
x = −3, x = −4
x = 3, x = 4
x = 2, x = 6
x = −2, x = −6
anonymous
 one year ago
Solve x2 − 7x + 12 = 0. x = −3, x = −4 x = 3, x = 4 x = 2, x = 6 x = −2, x = −6

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0factor the left part of the equation

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2x^2  7x + 12 = 0 x^2 4x  3x + 12 = 0 now factor the above by grouping

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2 that means factor x^2  4x and  3x + 12 then simplify

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@DarkMoonZ what did you get after following @welshfella directions

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0x (x  4) and 3(4x)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Sorry I had been AFK lol and thanks @welshfella

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2first one is write notice it 3 x + 12 negative 3

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2no its 3( x  4) If you expand that you'll see it comes bakc to 3x + 12 so we got x(x  4)  3(x  4) = 0

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2now e can simplify this further because there is (x  4) in both parts

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2so take x  4 out and what have we got left?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2no what i mean by taking x  4 out is using it as a factor and what left becomes the other factor similar to 3 x + 3y  3 is common to both 3x and 3y so we take 3 'out' and it becomes a factor 3x + 3y = 3 (x + y) The x+ y becomes the other factor.

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2x(x  4)  3(x  4) = 0 (x  4) is common so we take it out and whats left ( the x  3 0 goes in the other parentheses so we have (x  4)(x  3) = 0

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2now either x  3 = 0 or x  4 = 0 making x = 3 , 4
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