Question

i. Multiply: (x+3)(x-7)​

Answer 1

How do you multiply (x+3)(x−7)?

Algebra  Multiplication of Polynomials by Binomials

=x2−4x−21

Explanation:

(x+3).(x−7)

=(x).(x−7)+(3).(x−7)

=x2−7x+3x−21

=x2−4x−21

please heart this answer

Answer 2

Answer:

x²-4x-21

Step-by-step explanation:

foil

first

x • x

outer

-7 • x

inner

3•x

last

3 • -7

ײ -7x +3x -21