How is the product of 3 and –2 shown using integer tiles?
2 answers:
Answer:
-6
Step-by-step explanation:
Solution :
Since we are given that 3 * -2
SInce 2 has negative sign so will make groups of two negative signs
Since 3 is positive so we will make 3 groups of 2 negative signs (refer the attached figure)
So, there are three groups of two negative signs so there will be 6 negative signs.
Thus the answer will be -6
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Answer:
x = - , x =
Step-by-step explanation:
Given
x² - x - = 0
Multiply through by 4 to clear the fraction
4x² - 4x - 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 = 4 × - 3 = - 12 and sum = - 4
The factors are + 2 and - 6
Use these factors to split the x- term
4x² + 2x - 6x - 3 = 0 ( factor the first/second and third/fourth terms )
2x(2x + 1) - 3(2x + 1) = 0 ← factor out (2x + 1) from each term
(2x + 1)(2x - 3) = 0
Equate each factor to zero and solve for x
2x + 1 = 0 ⇒ 2x = - 1 ⇒ x = -
2x - 3 = 0 ⇒ 2x = 3 ⇒ x =