Question

(l+(d+3w))(l+(−3w−d))

Answer 1

Решение на фото будут вопросы пишите

Answer 2

To simplify the given expression, we'll start by multiplying the two binomials:

(l + (d + 3w))(l + (−3w − d))

Step 1: Distribute the terms using the FOIL method (First, Outer, Inner, Last): FOIL = l * l + l * (-3w - d) + (d + 3w) * l + (d + 3w) * (-3w - d)

Step 2: Multiply the terms: l * l = l^2 l * (-3w) = -3wl l * (-d) = -dl (d + 3w) * l = dl + 3wl (d + 3w) * (-3w) = -3dw - 9w^2 (d + 3w) * (-d) = -d^2 - 3wd

Putting it all together, we get:

l^2 - 3wl - dl + dl + 3wl - 3dw - 9w^2 - d^2 - 3wd

Step 3: Simplify the expression by canceling out like terms:

The "-3wl" and "+3wl" terms cancel each other out. The "-dl" and "+dl" terms cancel each other out.

The simplified expression becomes:

l^2 - 3dw - 9w^2 - d^2

So, the final simplified expression is:

l^2 - 3dw - 9w^2 - d^2