Answer:
15.625
Step-by-step explanation:
Answer:
88
Step-by-step explanation:
(fog)(-g) = f(g(-5))
g(-5) is 20
f(20) is 88
Answer:
9a+9b
Step-by-step explanation:
Add b to a and multiply 9 by the result without simplifying any part of the expression.
Not simplifying an expression in algebra means not organizing or grouping like terms in the algebraic expression in such a way as to make it more understandable. It is not required in this case. Hence,
We add b to a
=a+b
We multiply 9 by the result
=9 * a+b
=9(a+b)
= 9a+9b
Answer:
<h3>Polynomials are said to be <u>closed</u> under the operation of multiplication</h3>
Step-by-step explanation:
Because the product of two polynomials is always another polynomial, the polynomials are said to be <u>closed</u> under the operation of multiplication.
<h3>For :</h3>
The product of two polynomials is always another polynomial.
When two polynomials are multiplied, each and every term of the first polynomial is multiplied by each and every term of the second polynomial.
<h3>∴ Polynomials are said to be <u>closed</u> under the operation of multiplication.
</h3>
Answer:
b= -1
Step-by-step explanation:
Step 1: Find out value of x
x-2 = 0
x= 2
Step 2: Substitute value of x in the equation
x^3 + bx^2- 4 = 0
(2)^3 + b (2)^2 - 4 = 0
8 + 4b - 4=0
4 - 4b = 0
4b = -4
b = -1