(x+3)(x+4) plz show your work

Mathematics

2 answers:

Molodets [167]3 years ago

8 0

X + 3 = 3x
x + 4 = 4x

vesna_86 [32]3 years ago

5 0

Lets do FOIL (first,outside,inside,last)

(x + 3)(x + 4)
F.....multiply first terms in each set.....x * x = x^2
O...multiply outside terms in each set...x * 4 = 4x
I...multiply inside terms in each set....3 * x = 3x
L...multiply last terms in each set....3 * 4 = 12

put them together....x^2 + 4x + 3x + 12.....combine like terms....
x^2 + 7x + 12 <===

You might be interested in

On equal intervals, the y-values of a quadratic function have a common _________

Anettt [7]

Answer:

second difference

Step-by-step explanation:

The differences of the y-values will differ by a common amount.

Example:

y = x^2 for x = 2, 4, 6, 8

y-values are 4, 16, 36, 64

differences of these are 12, 20, 28

differences of these differences are 8 and 8, a common value.