factorise: -3x² +10x+10=0
Answers
Answer:
look below
Step-by-step explanation:
3x*-10x-10=0
x= -(-10) +-√-(-10*) -4x3x(-10)
------------------------------------
2x3
x= (10) +-√-(-10*) -4x3x(-10)
------------------------------------
2x3
x= (10) +-√-(-10*) -4x3x(-10)
------------------------------------
6
x= (10) +-√-10 (-10+4x3x10)
------------------------------------
6
x= (10) +-√-10 (-10-4x3)
------------------------------------
6
x= (10) +-√-10 (-10-12)
------------------------------------
6
x= (10) +-√-10 (-22)
------------------------
6
x= (10) +-√220
-------------------
6
x= (10) +-2√55
-------------------
6
Respost
X1: x= (10) - 2√55
-------------------
6
X2:x= (10) +2√55
-------------------
6