Using distributive law, find the square of 43.
Answers
Answered by
3
43sq = ( 40 + 3) sq
= 40sq + 3sq + 2x40x3
= 1600 + 9 + 240
= 1849
Answered by
0
Answer:
Follow the steps to get the answer.
hope its helpful. :)
Step-by-step explanation:
distributive law = a(b+c) = ab + ac
square of 43 = (43)²
(43)² = (40 + 3)²
(a + b)² = a² + 2ab + b²
(40+3)² = 40² + 2(40×3) + 3²
= 1600 + 2(120) + 9
= 1609 + 240
(43)² = 1849
Similar questions