Question

I dont know how to solve this

Answer 1

1) x²+25
2)121-a²
3)2x²+5476
4)9m+16-12m-12m
-15m+16
5)81+16h-36h-36h
81-56h
not pretty sure tho

Answer 2

For the first question
Split them into 2 brackets as they are squared e.g. (x+5)(x+5)

And then multiply out the brackets e.g. x^2+5x+5x+25

Then collect like terms e.g.
x^2+10x+25

Then you should be able to figure out the next few questions