zaraismail zaraismail

13-06-2022
Mathematics

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Solve these simultaneous equations
y - 4x = 6
y = 2x² + 3x + 5

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ArrestNupurSharma ArrestNupurSharma

13-06-2022

Step-by-step explanation:

y - 4x = 6 ..(1)

y = 6 + 4x

y = 2x² + 3x + 5 ...(2)

2x² + 3x + 5 = 6 + 4x

2x² + 3x - 4x + 5 - 6 = 0

2x² - x - 6 = 0

2x² - 4x + 3x - 6 = 0

2x(x - 2) + 3(x - 2) = 0

(x - 2) (2x + 3)

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