Xsquare -24x-180 factorise it
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x²-24x-180 = 0
Use Sridharcharya's formula,
ax²+bx+c = 0,
ẞ = (-b ± √b²-4ac)/2a
If in case you failed to solve the answer from middle term splitting. You can always use this formula. It's valid in every case.
[(24 ± √(24)²- 4(1)(-180)]/2(1)
(24 ± √576+720)/2
24± √1296/2
√1296 = 36
24±36/2
1) (24+36)/2 = 30
2) (24-36)/2 = -6
(:
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