2 answers:
Answer:
B
Step-by-step explanation:
y² - 12y + 32
consider the product of factors of the constant term (+ 32) which sum to give the coefficient of the y- term (- 12)
the factors are - 4 and - 8 , since
- 4 × - 8 = + 32 and - 4 - 8 = - 12 , then
y² - 12y + 32 = (y - 4)(y - 8)
Answer:
B. (y-4)(y-8)
Step-by-step explanation:
Given equation: y² - 12y + 32. Essentially, we are going to find two numbers that multiply to 32 and add up to -12.
1) Pull out the factors of 32 and find the pair that multiply to 32 and add up -12.
They are: -8 and -4.
2) Rewrite the b of the original quadratic equation as a sum, then factorise by grouping.
y² - 8y - 4y +32
y(y - 8) - 4(y - 8)
(y - 4)(y -8)
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