2 years ago

Expand and simplify (X+5) (x+7)

1 answer:

4 0

Answer:

x^2+12x+35

Step-by-step explanation:

x(x+7)+5(x+7)

x^2+7x+5x +35

x^2+12x+35

You might be interested in

Arturiano [62]

We need a number to complete

$(x+c)^2=x^2+2xc+c^2$

Since we have

$2xc=\dfrac{4}{5}x \iff 2c=\dfrac{4}{5}\iff c=\dfrac{4}{10}=\dfrac{2}{5}$

And so the expanded square is

$\left( x+\dfrac{2}{5}\right)^2=x^2+\dfrac{4}{5}x+\dfrac{4}{25}$

6 0

2 years ago

Inessa [10]

Answer:

828

Step-by-step explanation:

5 0

2 years ago

timofeeve [1]

Answer:

36 yards

Step-by-step explanation:

causeimsmart

4 0

1 year ago

Dvinal [7]

I don’t think so it is just asking for help

5 0

2 years ago

True [87]

24??? What is the old cube measurements???? Or these the the new cube measurements??

8 0

2 years ago