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25 votes
Help as soon as possible!!

Answer only if you know!

At least answer one of them!

Help as soon as possible!! Answer only if you know! At least answer one of them!-example-1
User Kristopher Ives
by
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1 Answer

13 votes
13 votes

Answer:

c) x=1.23

Explanation:

a =3

b=2

c=-7

use quadratic equation where


{ ax}^(2) + bx + c = 0 = \frac{ - b \: + or \: - \sqrt{ {b} ^(2) - 4ac} }{2a}

-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 x=1.23

User Rafael Moura
by
3.2k points