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3 years ago

Solution set for 6a^2-a-5=0

2 answers:

7 0

$6a^2-a-5=0\\\\6a^2+5a-6a-5=0\\\\a(6a+5)-1(6a+5)=0\\\\(6a+5)(a-1)=0\iff6a+5=0\ \vee\ a-1=0\\\\6a+5=0\ \ |-5\\6a=-5\ \ \ |:6\\a=-\dfrac{5}{6}\\\\a-1=0\ \ \ |+1\\a=1\\\\Answer:\ \boxed{a=-\dfrac{5}{6}\ \vee\ a=1}$

VMariaS [17]3 years ago

6 0

(step 1) (6a+5)(a-1)=0

(step 2) 6a+5=0 or a-1=0

answer is
a= -5/6 or a= 1
i hope this helps! ;)

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