Answer:
Option (2)
Step-by-step explanation:
Given equation is,
x⁴- 9x² + 8 = 0
Let x² = t
By substituting the value of x²= t in the equation,
t² - 9t + 8 = 0
t² - 8t - t + 8 = 0
t(t - 8) - 1(t - 8) = 0
(t - 1)(t - 8) = 0
(t - 1) = 0 ⇒ t = 1
(t - 8) = 0 ⇒ t = 8
Since, t = x²
x² = 1 ⇒ x = ±1
x² = 8 ⇒ x = ±2√2
Therefore, Option (2) will be the correct option.
First Simplify addition and subtraction expressions: combining like terms. ...
Second Read and write an algebraic expression containing a variable. ...
Third Write word problems as algebraic expressions. ...
Fourth Read and write algebraic expressions using parentheses. ...
Last Evaluate one-step algebraic expressions by substitution.
Answer:
perhaps he was bald
Step-by-step explanation:
if hes bald, no hair can get wet
At most 12 peppers can be bought with $18
Step-by-step explanation:
Given
Total amount for peppers = $18
Cost per pepper = $1.50
Let p be the number of peppers that can be bought from $18 at $1.50 per pepper
So,
Dividing both sides by 1.50
Hence,
At most 12 peppers can be bought with $18
Keywords: Inequality, solution
Learn more about inequalities at:
#LearnwithBrainly
4.Answer is $2.55
5.Answer is $32.01
