Question

`3x^2-75=2x^2-36` please how many real solutions ?

Answer 1

2

Explanation:

It simplifies to `x^2-39` which when you graph it gives 2 real solutions (on the x-axis).

Answer 2

`2" real solutions"`

Explanation:

`"to obtain the solutions rearrange and equate to zero"`

`rArrx^2-39=0`

`rArrx^2=39`

`color(blue)"take the square root of both sides"`

`rArrx=+-sqrt39larrcolor(blue)"note plus or minus"`

`"hence there are 2 real solutions to the equation"`

`"shown where the graph crosses the x-axis"`
graph{x^2-39 [-80, 80, -40, 40]}