7. Simplify: i) ? 2-?2? 2+3?+?1 yu+3? ii) Multiply (4x2 + 9) and 3x
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Explanation:
i can't understand the first one.......but I can understand the second one......
here is your answer...
(4×2 +9) × 3x
therefore ......8+9 × 3x
=17+3x
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