Post the part one of the problem please and thank you
Answer:
Divide both sides by 3
Step-by-step explanation:
Divide both sides by 3 to isolate x.
x = 81
The answer would be 2.7 if rounded to the nearest tenth. The actual answer is 2.66666 and so on. I know this because since the area is 8, we have to figure out 3 times __ equals 8. So the answer would be round about 2.7
Answer:
C
Step-by-step explanation:
Given
2x² + x - 1 = 2 ( subtract 2 from both sides )
2x² + x - 3 = 0
Consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term.
product = 2 × - 3 = - 6 and sum = + 1
The factors are - 2 and + 3
Use these factors to split the x- term
2x² - 2x + 3x - 3 = 0 ( factor the first/second and third/fourth terms )
2x(x - 1) + 3(x - 1) = 0 ← factor out (x - 1) from each term
(x - 1)(2x + 3) = 0
Equate each factor to zero and solve for x
x - 1 = 0 ⇒ x = 1
2x + 3 = 0 ⇒ 2x = - 3 ⇒ x = -
2-3(x+4)=8
2-3x+12=8
2-3x=-4
-3x=-6
x=2