Solve x2—5x – 10 = 0 and give your answer correct to two significant figures.
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x²-5x-10=0
according to quadratic formula:
a=1
b=-5
c=-10
x= (-b+-√b²-4ac) / 2a.
x= [-(-5)±√5²-4×1×-10]/ 2×1
x=[5±√25+40]/2
x=[5±√65]/2
x=[5±8.06....]/2
x=[5±8.06]/2
on taking x=[5+8.06]/2 on taking x=[5-8.06]/2
x=[13.06]/2 x=[-3.06]/2
x=6.53 x=-1.53
so x=(6.53 , -1.53)
hope it helps
plz mark it as brainliest
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