3 years ago

Solve by factoring m^2+8m+7=0

Mathematics

2 answers:

Alborosie3 years ago

8 0

Complete the square.................

Alenkinab [10]3 years ago

3 0

We can use completing the square.We add 16 and subtract 7 to both sides. Now we get m^2+8m+16=9. The left sides becomes (m+4)^2=9. Taking the square root of both sides and subtracting 4 we get -1 and -7.

You might be interested in

Shaneeka is saving $5.75 of her allowance each week to buy a new camera that costs $51.75. How many weeks will she have to save

nika2105 [10]

Answer:

a. 9 weeks

Step-by-step explanation:

$51.75÷$5.75= 9 weeks

She will have to save 9 weeks to be able to afford the camera.

6 0

3 years ago

I need this math question solved fast please!!!

beks73 [17]

Answer:

5 2/3

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

If h(x) = 5 x and k(x)=1/x, which expression is equivalent to (koh)(x)?

Lyrx [107]

May be there is an operator missing in the first function, h(x). I will solve this in two ways, 1) as if the h(x) = 5x and 2) as if h(x) = 5 + x

1) If h(x) = 5x and k(x) = 1/x

Then (k o h) (x) = k ( h(x) ) = k(5x) = 1/(5x)

2) If h(x) = 5 + x and k (x) = 1/x

Then (k o h)(x) =k ( h(x) ) = k (5+x) = 1 / [5 + x]

4 0

3 years ago

Read 2 more answers

4.8-2/5(w-6) mathematic equation

mixer [17]

Answer:

$\frac{0.56}{w - 6}$