sat suite question viewer

Advanced Math / Equivalent expressions Difficulty: Easy

Which expression is equivalent to $left parenthesis 8 y z right parenthesis left parenthesis y right parenthesis left parenthesis 7 z right parenthesis$ ?

$56 y squared z squared$

$56 y squared z$

$56 y z$

$16 y z$

Back question 82 of 102 Next

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102

Explanation

Choice A is correct. The given expression can be rewritten as $left parenthesis 8 dot 7 right parenthesis left parenthesis y dot y right parenthesis left parenthesis z dot z right parenthesis$ , which is equivalent to $left parenthesis 56 right parenthesis left parenthesis y squared right parenthesis left parenthesis z squared right parenthesis$ , or $56 y squared z squared$ .

Choice B is incorrect. This expression is equivalent to $left parenthesis 8 y z right parenthesis left parenthesis y right parenthesis left parenthesis 7 right parenthesis$ .

Choice C is incorrect. This expression is equivalent to $left parenthesis 8 z right parenthesis left parenthesis y right parenthesis left parenthesis 7 right parenthesis$ .

Choice D is incorrect and may result from conceptual or calculation errors.