9x5+5=60
Step-by-step explanation:
Answer= (7x - 4)(x - 3)
Work=
You’re looking for 2 numbers that add to -4 and multiply to -21.
-7 + 3 = -4
-7 x 3 = -21
So it’s (x - 4)(x - 21)
Divide both by 7, because it is attracted to the x squared.
Remember: if a number is not divisible by 7, the 7 attaches to the x
Answer= (7x - 4)(x - 3)
Answer:
240 cm², A = 300 cm², and 540 cm²
Step-by-step explanation:
1) The area of a parallelogram is A = bh, so:
A = (20)(12)
A = 240 cm²
2) Similarly, the area of a rectangle is A = bh, so:
A = (15)(20)
A = 300 cm²
3) The composite area is the sum of both the rectangle's area and the parallelogram's area, so:
240 cm² + A = 300 cm² = 540 cm²