Question

$(1 + x)(x + 1)$
solution​

Answer 1

Answer:

$(1 + x)(x + 1)$

$= 1 \times x + 1 \times 1 + x \times x + x \times 1$

$= x + 1 + {x}^{2} + x$

$={x}^{2} + 2x + 1$

Answer 2

Subtract

1+x-x+1

1+1-x-x

2

Add

1+x+x+1

x+x+1+1

{2x+2}