Tuklasin ang maliwanag na mga sagot sa iyong mga tanong sa IDNStudy.com. Magtanong at makakuha ng detalyadong sagot mula sa aming komunidad ng mga eksperto.

how to solve the quadratic equation by completing the square and quadratic furmula


Sagot :

1) Find the formula...
     x= -(b) +- (the square root of) (b)(squared) -4(a)(c)all over 2(a)
2) Determine the values a, b and c
     x2 -10x = 0
   a = 1 (all variable with no numerical coefficient = 1) b = -10 c = 0( if 'c' or 'b' is not shown to any equation = 0)
3) Substitute the value.
     x = -(-10) +- (the square root of) (-10) squared - 4(1)(0) all over 2(1)
4) Simplify
     x = 10 +- (the square root of) 100 - 0 all over 2
     x = 10 +- 10 all over 2
5) Separate the two combining signs
     x1 = 10 + 10  all over 2
     x1 = 20 \20
     x1 = 1
     x2 = 10 - 10 all over 2
     x2 = 0 \2
     x2 = 0
Then that's it!!