Question

Find the product by using an identity: (5x + 4)(5x - 3)​

Answer 1

$\underline\bold{ \pink{A} \green{N} \blue{S} \purple{W} \red{E} \orange{R}}$

$⟹(5x + 4)(5x - 3)$

$⟹x = 5x \\ ⟹a = 4 \\ \: \: \: \:⟹ b = - 3$

$\red{ \boxed{(x + a)(x - b) = {x}^{2} + (a + b)x + ab}}$

$⟹(5x) {}^{2} + (4 + ( - 3))5x + (4)( - 3)$

$⟹25 {x}^{2} + ( - 1)5x - 12$

$⟹25 {x}^{2} + 5x - 12$

$\underbrace\mathcal\red{Please\:mark\:as\:\:Brainliest..............}$

Answer 2

Answer:

$\underline\bold{ \pink{A} \green{N} \blue{S} \purple{W} \red{E} \orange{R}} </p><p>ANSWER</p><p> </p><p> </p><p></p><p>⟹(5x + 4)(5x - 3)⟹(5x+4)(5x−3)</p><p></p><p>\begin{gathered}⟹x = 5x \\ ⟹a = 4 \\ \: \: \: \:⟹ b = - 3\end{gathered} </p><p>⟹x=5x</p><p>⟹a=4</p><p>⟹b=−3</p><p> </p><p> </p><p></p><p>\red{ \boxed{(x + a)(x - b) = {x}^{2} + (a + b)x + ab}} </p><p>(x+a)(x−b)=x </p><p>2</p><p> +(a+b)x+ab</p><p> </p><p> </p><p></p><p>⟹(5x) {}^{2} + (4 + ( - 3))5x + (4)( - 3)⟹(5x) </p><p>2</p><p> +(4+(−3))5x+(4)(−3)</p><p></p><p>⟹25 {x}^{2} + ( - 1)5x - 12⟹25x </p><p>2</p><p> +(−1)5x−12</p><p></p><p>⟹25 {x}^{2} + 5x - 12⟹25x </p><p>2</p><p> +5x−12</p><p></p><p>\underbrace\mathcal\red{Please\:mark\:as\:\:Brainliest..............} </p><p>PleasemarkasBrainliest..............</p><p>$