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Mashutka [201]
3 years ago
7

Factorise the equation 9x^2 - 4

Mathematics
1 answer:
Wittaler [7]3 years ago
5 0

Answer:

Step-by-step explanation:

a² - b² = (a +b)(a - b)

9x² - 4 = (3x)² - 2²

            = (3x + 2 )(3x - 2)

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X + y = –4<br> y = 3x + 16
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If
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i multiply the first equation by 3
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6 0
3 years ago
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Is there a picture of the graphs?
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How do you solve 5-4x&lt;95
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