Question

this
x²-13x +30=0 from
Quadratic
equation find the value
the value of dx ß​

Answer 1

Answer:

x^2-13x+30

x^2-15x+2x-30

x(x-15) 2(x-15)

=> (x+2)(x-15).

Answer 2

Answer:

x²-13x+30=0

D²=169-4×30

D²=169-120

D²=49

D=7

X= 13+7/2=10. X=13-7/2=3.

if we put x= 10. if we put x=3

100-130+30=0. 9-39+30=0

-30+30=0. -30 +30=0

thus. we can conclude that x =10 and 3

this type of method is for class 10