Question

Find:
a)2x^2+x-45
b)25-a^2-b^2-2ab

Answer 1

a) 2x^2+x-45
2x^2+10x-9x-45=0
2x(x+5)-9(x+5)=0
( x+5) (2x-9)=0
x=9 or -5.

Answer 2

Hey Mate,

I will solve your questions part-wise, but I didn't get one thing. Your question is find. Find What ??? Anyways, I will solve your questions as if the question was to simplify.

Ans) a)

Given,

$2x^{2}+x-45$

Then,

It is already in its simplified form.

Ans) b)

Given,

$25-a^{2}-b^{2}-2ab$

Then,

It is already in its simplified form.

If you want the correct answers, please edit your question. Then, I will answer your questions.

Hope it Helps!