Respuesta :
Answer:
try B. 2x^2 - x - 2
Step-by-step explanation:\
Cant realy give step by step- i just know
The solution 2x² - x - 1 is equivalent to expression y + yz.
What are Arithmetic operations?
Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions.
The operator that performs the arithmetic operation is called the arithmetic operator.
Operators which let do a basic mathematical calculation
+ Addition operation: Adds values on either side of the operator.
For example 12 + 2 = 14
- Subtraction operation: Subtracts the right-hand operand from the left-hand operand.
for example 12 -2 = 10
* Multiplication operation: Multiplies values on either side of the operator
For example 12*2 = 24
Given expression as :
⇒ y + yz
y = x + 1/2 and
z = 2x - 3
Substitute the values of y and z in the expression y + yz,
⇒ x + 1/2 + (x + 1/2)(2x - 3)
⇒ x + 1/2 + x(2x - 3) + 1/2(2x - 3)
⇒ x + 1/2 + 2x² - 3x + x - 3/2
Rearrange the like wise term and apply the arithmetic operations,
⇒ 2x² - 3x + x + x + 1/2 - 3/2
⇒ 2x² - x - 1
Hence, the solution 2x² - x - 1 is equivalent to expression y + yz.
Learn more about Arithmetic operations here:
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