Question

plz solve this problem to me x²-55x+750=0​

Answer 1

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Explanation:

${x}^{2} - 55x + 750 = 0$

It is in the form of a quadratic equation so we simply factorise it to find out the roots:

How to factorise..??

step1: Multiply the constant term coefficient of x square.suppose we obtain 'z' after multiplying

step 2:Think of a number whose sum and product makes the 'z'

step 3: now split the middle term by that number which you think.

step 4:At last take common and compare with equal to 0 we obtain the roots .

$= > {x}^{2} - 30x - 25x + 750 = 0$

$= > x(x - 30) - 25(x - 30) = 0$

$= > (x - 25)(x - 30) = 0$

$x = 25 \: | \: x = 30$

Hence ,the roots are :x=25;x=30