Question

Help me plss look at the screenshot

Answer 1

Answer:

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

Answer 2

Answer:

(4x + 1)(x + 1)

Step-by-step 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!