Algebra-1

To expand the expression (x + 7)(x - 2) into a polynomial in standard form, we need to multiply each term of the first expression by each term of the second expression and then combine like terms.

Let's go step by step:

First, multiply the terms of the first expression by x:
x * x = x²
x * (-2) = -2x

Next, multiply the terms of the first expression by 7:
7 ...