It's clear to understand
A) Factorise 2x² - 9x - 5 (x-5)(2x+1) (2) b) Hence, simplify fully 2x^2- 9x - 5 3x – 15x (2)
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Answer:
The answer is
<h2>12</h2>Step-by-step explanation:
The above variation is written as
where k is the constant of variation
when y = 16
x = 3
k = yx²
k = 16(3)²
k = 16 × 9
k = 144
The formula for the variation is
when y = 1
We have
Cross multiply
x² = 144
Find the square root of both sides
x = √144
x = 12
Hope this helps you