Multiply the following polynomials

Answer (2x + 7) • (x2 - 2)
Step-by-step explanation:
please give me brainlest!!
Step by step solution :
Step 1 :
Trying to factor as a Difference of Squares :
1.1 Factoring: x2-2
Theory : A difference of two perfect squares, A2 - B2 can be factored into (A+B) • (A-B)
Proof : (A+B) • (A-B) =
A2 - AB + BA - B2 =
A2 - AB + AB - B2 =
A2 - B2
Note : AB = BA is the commutative property of multiplication.
Note : - AB + AB equals zero and is therefore eliminated from the expression.
Check : 2 is not a square !!
Ruling : Binomial can not be factored as the difference of two perfect squares.
Final result :
(2x + 7) • (x2 - 2)
Answer:
2x^3+7x^2-4x-14
Step-by-step explanation:
It's a long step of distributing across the problem.
2x times x^2 is 2x^3 since exponents work through addition.
7 times x^2 is 7x^2 much like the the first part.
2x times -2 is negative 4x.
7 times -2 is negative 14.
Simply distributing is all you need to do.
I hope this helps! ^.^