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s2008m [1.1K]
3 years ago
10

(2x-1)(x+4)=0 need this question

Mathematics
2 answers:
eduard3 years ago
6 0

Answer:

x = 1/2 or x = -4

Step-by-step explanation:

Since the product equals zero, use the zero product rule.

(2x - 1)(x + 4) = 0

2x - 1 = 0 or x + 4 = 0

2x = 1   or   x = -4

x = 1/2 or x = -4

Kobotan [32]3 years ago
5 0

Answer: you have 2 solutions for that equation, 1/2 and -4

Step-by-step explanation:

(2x-1)(x+4)=0

2x^2+8x-x-4=2x^2+7x-4

use the formula for quadratic equations

x₁ and x₂  =-(7 (+-)\sqrt49+32)/4=

we have x1= 1/2 and x 2=4

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