Question

evaluate (5x+3) (5x-3)​

Answer 1

$(5x) ^{2} - 3 ^{2}$

$(5) ^{2} - 9$

solve..

Answer 2

it's on a formula---

${a}^{2} - {b}^{2} = (a + b)(a - b)$

so your answer is (5x^2-3^2)

hope it helps......