Simplifying Expressions

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Presentation transcript:

Simplifying Expressions Literacy Memory Research Fill the blanks with these words; collect, expression, variable, like, unknown, equation a x a = a2 2 x b = 2b a x b = ab 2 ÷ b = 2 b Search Google for Khan Academy Origins of Algebra and watch the short video. Write down ten facts from the video relating to the origins of algebra. 2x + 3x B) 2x + 3x = 25 A is an ______, B is an ______. In A x is a ____. In B x is an ____ that you can find the value of. You can ____ the terms in A because they are ____. Skills Practice Stretch E – Simplify 7n2 + 8p – p + 5n2 8x2 – 3x – 3x2 -7b + 2a + 3b – 5a -3g2 + 2g – 4g2 + 4g 5c x 2d 6h x 3i 7z x 3z 8s x 5s A – Simplify 5x + 6x + 3x 8m + 2m – 3m 9y – 4y + 2y 4b + 5b – b 9p – 7p + 4p – 5p 4c + 3c – 11c C – Simplify 3 x 4d 5 x 2m 7f x 2 8s x 5 14c ÷ 2 20v ÷ 5 B – Simplify 3 x t 5 x g b ÷ 3 7 ÷ w m x n p x q D – Simplify by collecting like terms 10a + 8b + 3a 2b + 6c + 4b 8a + 4 + 2a + 3 6h + 2 + h + 11 7m + 2n + 3m + 4n 5k + 2l – 2k + 3l F – Which of these expressions simplify to give -3x – 4y a) 6x + 4y – 9x – 4y b) 12x + 3y – 9x – 7y c) 4x + 7y – 7x – 3y d) x + 2y – 4x – 6y