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What is the value of x? (5x) (3x + 18)º A. x = -2.25 B. x = 2.25 Cx = 9 D. x = -9
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What is the value of x?

(5x)
(3x + 18)º

A. x = -2.25
B. x = 2.25
Cx = 9
D. x = -9

User David Ranzolin
by
5.3k points

1 Answer

2 votes
We know that 5x-3x =2x

So x(5x-3x)=x×2x

=(2x)^2

=4x^2

Which is given as 18.

X^2=18÷4

=4.5

So x=root over 4.5

Which is approximately 2.25
User Shojib Flamon
by
5.6k points
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