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3 years ago

How can i solve that equation by factoring

Mathematics

2 answers:

Alina [70]3 years ago

6 0

Answer:

$y = {x}^{2} + 8x + 15 \\ factors \: = 3 \: and \: 5 \\ y = {x}^{2} + 3x + 5x + 15 \\ y = x(x + 3) + 5(x + 3) \\ y = (x + 5)(x + 3) \\ either \: (x + 5) = 0 \: or \: (x + 3) = 0 \\ x = - 5 \: and \: - 3$

Hoochie [10]3 years ago

5 0

Answer:

y = ( x + 3 )( x + 5 )

Step-by-step explanation:

N/A

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2 years ago

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Step-by-step explanation:

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2 years ago

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bogdanovich [222]

Answer:

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Step-by-step explanation:

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8 0

2 years ago

NARA [144]

Answer:

PB = 1.8

Step-by-step explanation:

PQ = 8 cm, BC = 10 cm and AB = 9 cm

∆ABC is similar to ∆APQ.

Therefore:

$\frac{AB}{AP} = \frac{BC}{PQ}$

Plug in the values

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