(2p+5q)(7-r+5s)
word problem on perimeter
x+y less than 5
x-y=2a, ax+by=$a^{2}$+ $b^{2}$ then
find the value of x and y
3ab-5b+3ac+4by
integral(z-z^2 )where cisahalfcircisahalfcircle|z -2|=3
3r^2-4r-6 / 5r^2-16r+3
x-y=2a, ax+by=a\power{2}+b\power{2} then
x-y=2a-----[1]
ax+by=a\power{2}+b\power{2}-----[2]
ax-4ay-bx+4by
