Question

Evaluate 18*23 using identity​

Answer 1

Answer:

414

Step-by-step explanation:

(20-2)(20+3) (applying (x+a)(x+b) = x²+x(a+b) + ab )

(20+ (-2))(20+3)

20²+ 20(3+-2) + (3)(-2)

400 + 20 -6

414

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