(sqrt3 + 5)(sqrt3 -3) ?

multiply that out
sqrt3*sqrt3 -3sqrt3 +5sqrt3 -15
now combine and simplify terms.

yes the problems is:

((sqrt3)+5)((sqrt3)-3)
if i put in my calculator what the squareroot of 3 it will give me 1.7

so if i it by decimals i get the follwoing

2.89-5.1+8.5-15 is this right becuase i need to do foil for it correct or no.

NNNNOOOO. don't put it in the calculator.

multiply that out
sqrt3*sqrt3 -3sqrt3 +5sqrt3 -15
now combine and simplify terms.

sqrt3*sqrt3 is 3. The two middle terms add to 2sqrt3
So the answer is 2sqrt3 -12.

Similar Questions
  1. Find the exact solution(s) of the system: x^2/4-y^2=1 and x=y^2+1A)(4,sqrt3),(4,-sqrt3),(-4,sqrt3),(-4,-sqrt3)
    1. answers icon 3 answers
  2. Find the exact solution(s) of the system: x^2/4-y^2=1 and x=y^2+1A)(4,sqrt3),(4,-sqrt3),(-4,sqrt3),(-4,-sqrt3)
    1. answers icon 0 answers
  3. Find a polynomial function of degree 3 with the given numbers as zeros.-5, sqrt3, -sqrt3 Would this work as a function for this
    1. answers icon 2 answers
  4. Assume that no denominator equals 0.sqrt12 - sqrt18 + 3sqrt50 + sqrt75 = (sqrt2^2*3) - (sqrt2*3^2) + (3sqrt2*5^2) + (sqrt3*5^2)
    1. answers icon 1 answer
more similar questions