Answer:
w=-25 and w=21
Step-by-step explanation:
This equation is a trinomial meaning we can factorise it into brackets, in order to do that we must figure out which 2 numbers multiply to 525 but also add/subtract to 4.
These 2 numbers are 25 and -21 (we can find this through simple guess and check), so we put them into this form:
(x+25)(x-21)=0
Here, we can use the null factor law since the equation is equal to 0 to get:
w= -25 and w= 21
