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Question
Find the sum of:
9ax – 6bx + 8, 4ax + 8bx – 7 and – 6ax – 4bx – 3
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Solution
9ax – 6bx + 8, 4ax + 8bx – 7 and – 6ax – 4bx – 3
9ax – 6bx + 8 + 4ax + 8bx – 7 – 6ax – 4bx – 3
= 9ax + 4ax – 6ax – 6bx + 8bx – 4bx + 8 – 7 – 3
= 13ax – 6ax + 8bx – 10bx + 8 – 10
= 7ax – 2bx – 2
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