Question

Help me plss look at the screenshot

Answer 1

(4x + 1)(x + 1)

Explanation:

The blue squares mean
`x^2`

The red rectangles mean
`x`

The yellow square means
`+1`

So adding the tiles together we get:
`4x^2+5x+1`

Reading along the bottom = 4x + 1

Reading down the right side = x + 1

If we multiply these:

`(4x + 1)(x + 1)=4x^2+4x+x+1=4x^2+5x+1`

which is the same as above, so correct!

Answer 2

Therefore option 2 is correct.

given:

• 4 huge blue blocks
• 5 medium red blocks
• 1 small yellow block, it will be 1

solve:

option 1:

(x + 4)(x + 1)

x² + 4x + x + 4

x² + 5x + 4

option 2:

(4x+1) (x+1)

4x² + 4x + x + 1

4x² + 5x + 1

option 3:

4x + 5

option 4:

( 4x² + x ) (x + 1)

4x³ + 4x² + x² + x

4x³ + 5x² + x