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At least answer one of them!
1 answer:
Answer:
c) x=1.23
Step-by-step explanation:
a =3
b=2
c=-7
use quadratic equation where
-2+/- square root of (2^2- (4×3×-7) ) all that over 2x3
square root of (2^2-(4×3×-7) )
= 9.38083152
2×3=6
-2+or - 9.38 all that divided by 6
-2+9.38= 7.38÷6
x=1.23
or
-2-9.38 all divided by 6
-2-9.38= -11.38 ÷6
x= -1.9
all in all x can't be negative meaning <em>x</em><em>=</em><em>1</em><em>.</em><em>2</em><em>3</em>
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I kno that 2 negative together u add them so (-7)