Question

(5x+2) (5x-9) what is the answers of this question ​

Answer 1

$\pink{\bold{\underline{ ✪ UPSC-ASPIRANT✪ }}}$

$\red{\bold{\underline{\underline{❥Question᎓}}}}$(5x+2) (5x-9)

$\huge\tt\underline\blue{⛶Answer⛶</p><p> }$

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Here this identity is used:-

$⟹(a + b)(a - b) = {a}^{2} - {b}^{2}$

$⟹(5x + 2)(5x - 9) = {(5x)}^{2} - {(9)}^{2}$

$⟹(5x + 2)(5x - 9) = 25 {x}^{2} - 81$

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Answer 2

Answer:

25x^2-45x+10x-18

25x^2-35x-18

now u factorise this