Question

factorise using middle term split
$x {}^{2} + 2x - 143$
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Answer 1

Answer:

x² + 2x - 143

x² + 13x - 11x - 143

x ( x + 13 ) - 11 ( x + 13 )

( x - 11 ) ( x + 13 )

Thank you! ❤

Answer 2

Answer:

$\bold {The\ value\ of\ x\ is\ either\ 11\ or\ -13}$

Step-by-step explanation:

${x}^{2} + 2x - 143 = 0 \\ \\ {x}^{2} + 13x - 11x - 143 = 0 \\ \\ x(x + 13) \: - 11(x + 13) = 0 \\ \\ (x - 11) \: \: (x + 13) \\ \\ x = 11 \: \: \: \: \: \: \: \: x = - 13$