Archie and Michael are helping their friend George move the washers and dryers from his laundromat to a larger building. Archie's truck is carrying three washers and four dryers that have a combined mass of 1260 kg Michael's truck is carrying two washers and three dryers that have a combined mass of 880 kg. How much does one of George's washers weigh?

A

Step-by-step explanation:

Yes

We are given the quadratic function:

The vertex form is given by:

So we have to convert our quadratic form into this vertex form.

We can do so by applying factoring by completing the square method.

Step 1:

We take half of coefficient of x and add it to x.

Coefficient of x is 14, half of it is 7.

(x+7)²

Step 2:

Subtract square of 7 that is 49,

(x+7)²-49+40

(x+7)²-9

The vertex form is given by: