The expression 36x² - 121 is in the 'difference of two squares form' which is (a² - b²)
Factorising (a² - b²) gives (a+b)(a-b)
Factorising 36x² - 121 gives (6x+11)(6x-11)
Insert x = -1 and y = 4 into the first inequality:-
4 <= -(-1) + 4 = 5
so this fits
Its A
Answer:
Correct answer is f(x) = (625^x)^1/4
Step-by-step explanation:
We know that
625 = 5^4
This means
f(x) = (625^x)^1/4
f(x) = (5^(4x))^1/4
But we know this is equivalent to
f(x) = (5^(4x*(1/4))) =
= 5^(x)
Correct answer is f(x) = (625^x)^1/4
Answer:
10%.
Step-by-step explanation:
Answer:
2x² + 15x + 27
Step-by-step explanation:
(2x + 9)(x+3)
2x² + 6x + 9x+ 27
2x² + 15x + 27