1.

Use a formula to multiply.(i) (x – 5)(x + 5)(ii) (2a – 13)(2a + 13)(iii) (4z – 5y)(4z + 5y)(iv) (2t – 5)(2t + 5)

Answer»
Use a formula to multiply.

(i) (x – 5)(x + 5)

(ii) (2a – 13)(2a + 13)

(iii) (4z – 5y)(4z + 5y)

(iv) (2t – 5)(2t + 5)


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