exam Maths Puzzle Numerical Ability

multiply (2x-3)(3x+2), i used the foil method

First times first 2x times 3x, outside times outside 2x + 2, inside times inside -3 times 3x, then last times last -3 times +2

answer 6xsquared minus 4x minus 6

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exam Other Question

thru (-2,3/4) and (2/3,5/2)
find an eq. in slope-intercept form if possible
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the sum of a two digit number is 10. if 18 be subtracted from it, the digits in the resulting number will be equal. the number is???