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What are the values of x if (2x-5)(x+3)=13
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What are the values of x if (2x-5)(x+3)=13

User Chrishiestand
by
8.6k points

2 Answers

0 votes

Answer: 3.5 & -4

Explanation:

Expand the brackets

2x² + 6x - 5x - 15 = 13

Make the RHS equal to 0

2x² + x - 28 = 0

Factorise

(2x - 7)(x + 4) = 0

If first bracket is 0:

2x - 7 = 0

2x = 7

x = 3.5

If second bracket is 0:

x + 4 = 0

x = -4

User Jeffrey Martinez
by
7.9k points
4 votes


x = (7)/(2) , -4
hope this helps

Explanation:

User CptNemo
by
8.3k points
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