Question

5x
2
+15x−140=05, x, squared, plus, 15, x, minus, 140, equals, 0
\text{छोटा }x =



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Answer 1

Step-by-step explanation:

x²+15x-140 = 0

on comparing to ax²+bx+c= 0

=> a=1, b= 15 ,c= -140

x= [ -b±√b²-4ac] /2a

x = [-15±√ 225+560]/ 2

x= [-15±√785]/2

therefore, x= (1/2) (-15±√785)

Answer 2

Hope you may understand