You multiply the dividend and the quotient
Answer:
Question 1. If the perimeter of Rectangle ABCD is 34y+2. What is the width?
Question 2. What is the area of Rectangle ABCD in terms of y?
Question 3. If the perimeter of the rectangle is 70. What is it’s area?
Question 4. What are the length and width of the rectangle?
Answer:
(ab - 6)(2ab + 5)
Step-by-step explanation:
Assuming you require the expression factorised.
2a²b² - 7ab - 30
Consider the factors of the product of the coefficient of the a²b² term and the constant term which sum to give the coefficient of the ab- term
product = 2 × - 30 = - 60 and sum = - 7
The factors are - 12 and + 5
Use these factors to split the ab- term
= 2a²b² - 12ab + 5ab - 30 ( factor the first/second and third/fourth terms )
= 2ab(ab - 6) + 5(ab - 6) ← factor out (ab - 6) from each term
= (ab - 6)(2ab + 5) ← in factored form
Multiply the first equation by -1
-3x-y=-4
2x+y=5
Add them up
-x=1
So x=-1
And y=7
So the first option is correct
Are you missing an option? The answer should be -2/3 (I just calculated it numerous times)
