1 / 9

Expanding Brackets

Expanding Brackets.

guest62715
Télécharger la présentation

Expanding Brackets

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Expanding Brackets Grade D/C 19/03/2013 Learning Objectives: • To expand a bracket (basic). • To expand a bracket (intermediate). • To expand a bracket (advanced).

  2. Starter • On whiteboards, simplify the following: 12f4g2h3 x 8f7g5h5 b3 x b2 3c2 x 7c5 4de x 6d2e3

  3. Expanding Brackets • In algebra, expand usually means multiply out. • To expand a bracket you multiply each term inside the bracket by the term outside the bracket. 4(a + 6) = 4a+ 24

  4. EXAMPLES: 7(m – 5) 6r(4 + 5r3) 4gh(3g2 – 8h3) 7m– 35 24r+30r4 12g3h– 32gh4 • NOTE: • You can check your answer by factorising the expression.

  5. Starter 3(5x + 8) 4x(3x– 2) 9xy(x – 3y) 15x+ 24 12x2– 8x 9x2y– 27xy2

  6. QUESTIONS • Expand the brackets in the following questions: • Answers can be found at the end of this presentation.

  7. 3a2b(4b2+ 2a) 6cd(3c4d – 2) 12e3f6(3e4f2+ 2) ghi(2 + g2h) j2km2(jk+ k4m) 3pr(8qr2+ 13p) 3(a + 5) 4(2b – 5) 6(5 – 11c) 7(2d + e) 11(3f – 4g) 7(h + 2i) 4m(m + 3) 5n(3n – 2) 14p(2p – 2 + 4) qr(2 + 7r) tu(tu – 5) v2w(1 + v2)

  8. ANSWERS • Answers for the previous questions can be found on the next slide.

  9. 12a2b3+ 6a3b 18c5d2– 12cd 36e7f8+ 24e3f6 2ghi + g3h2i j3k2m2+ j2k5m3 24pqr3+ 39p2r 3a + 15 8b – 20 30 – 66c 14d + 7e 33f – 44g 7h + 14i 4m2+ 12m 15n2– 10n 28p2– 28p + 56 2qr + 7qr2 t2u2 – 5tu v2w + v4w

More Related