Match the items.
1 answer:
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To add and subtract fractions you must do the multiplication of the numerator of the first with the denominator of the second. Then, add or subtract the multiplication of the numerator from the second with the denominator of the first. Finally divide the result between the multiplication of the denominator of the first with the denominator of the second fraction.Annex the result.
Answer:
a)+8x+15
b)-x-20
Step-by-step explanation:
a) (x+3)(x+5)
a)+5x+3x+15
a)+8x+15
b) (x+4)(x-5)
b) -5x+4x-20
b)-x-20