Question

(kl-mn)(kl+mn) using suitable identities​

Answer 1

Answer:

kl(kl+mn) - mn(kl+mn)

kl^+klmn-klmn-mn^

kl^-mn^

Answer 2

Answer:

$(a - b) \: (a + b) \: = \: {a}^{2} - {b}^{2} \\ a = kl \: b = mn \: \\ (kl - mn) \: (kl +mn) \: = \: ({kl})^{2} \: - \: ( {mn})^{2} \: = \: {kl}^{2} {mn}^{2}$

Step-by-step explanation:

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