Question

Select the factored form of the expression. If it cannot be factored, select” already in factored form”
100x^2-9
a. (10x+9)(10x-9)
b. (10x+3)(10x-3)
c. Already in factored form
d. (10x-3)(10x-3)

Answer 1

difference of square \[\huge\rm a^2 - b^2 = (a+b)(a-b)\]

Answer 2

@Nnesha im confused

Answer 3

take square root of first term and square root of 2nd term
write ur answer (sqrt of first number + sqrt of 2nd number ) (sqrt of first number - sqrt of 2nd number )