Question

Devi is 5 years older than huixian . If the product of their ages is 234, find huxians current age

Show the steps please :)

Answer 1

let huxians age be x

Devi's age is x+4

product is 234

equation:

234=x+5 × x

234=x^2+5x

234=x^2+5x

x^2+5x-234=0

x^2-5x-234=0

a = 1; b = -5; c = -234;

Δ = b2-4ac

Δ = -52-4·1·(-234)

Δ = 961

The delta value is higher than zero, so the equation has two solutions

We use following formulas to calculate our solutions:

x1=−b−Δ√2ax2=−b+Δ√2a

Δ−−√=961−−−√=31

x1=−b−Δ√2a=−(−5)−312∗1=−262=−13

x2=−b+Δ√2a=−(−5)+312∗1=362=

Step-by-step explanation:

hope this helps u