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ratelena [41]
3 years ago
8

Solve the following quadratic equation by rearranging and then factorising x^2 + 7x + 19 = 9

Mathematics
2 answers:
IRISSAK [1]3 years ago
6 0

Answer:

x = -5   & x = -2

Step-by-step explanation:

x^2 + 7x +10 = 0  you takeaway 9 as quadratic equations have to equal 0

(x+5)(x+2) = 0    you find 2 numbers that go into 10 that add to make 7 and multiply to make 10

(x+5) = 0 so x =-5     &   (x+2) = 0 so x =-2

wolverine [178]3 years ago
5 0

Answer:

your lucky you did have a online lessons earlll

Step-by-step explanation:

The following are the temperatures in °C for the first 14 days of January:

-6, -2.5, 2, 2.5, -0.5, 5, 10, -3, -7, 3, -1, 7, 1, 4.5

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5 0
3 years ago
Use a calculator to evaluate cot π/5.
bixtya [17]
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7 0
4 years ago
A bus company charges $1.35 a kilometre for chartering a bus. Each bus can transport a maximum of 54 students. Assuming that the
WARRIOR [948]

Answer:

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7 0
3 years ago
Read 2 more answers
Please can someone help me with the whole page ? Thank u and please please please show your work.
algol [13]
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6 0
3 years ago
What is the slope of the line shown in the graph below?
densk [106]
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So answer is d
3 0
4 years ago
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